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BirdieBall Contour/Break Shims & Challenging Hole Reducers let you create custom breaks and contours on your putting green. Includes shims and hole reducers of various shapes—perfect for a personalized golf practice setup.
BirdieBall Contour/Break Shims & Challenging Hole Reducers let you create breaks and contours for golf practice, using green foam shapes—perfect for putting green setups.
BirdieBall Contour/Break Shims & Challenging Hole Reducers—green foam strips, circles, semicircles, and an "eye-dot" piece—create putting green breaks and hole challenges; all shown on a white background.
BirdieBall's Contour/Break Shims & Challenging Hole Reducers include step-by-step instructions, components list, and tips on creating breaks and adding challenge to your putting green with shims and hole reducers.
BirdieBall Contour/Break Shims & Challenging Hole Reducers—Create Breaks and Contours—diagram illustrates different shim and reducer placements for edge, corner, and uphill golf putting practice on rectangular greens.
BirdieBall Contour/Break Shims & Challenging Hole Reducers let you create custom breaks and contours on your putting green. Includes shims and hole reducers of various shapes—perfect for a personalized golf practice setup.
BirdieBall Contour/Break Shims & Challenging Hole Reducers let you create breaks and contours for golf practice, using green foam shapes—perfect for putting green setups.
BirdieBall Contour/Break Shims & Challenging Hole Reducers—green foam strips, circles, semicircles, and an "eye-dot" piece—create putting green breaks and hole challenges; all shown on a white background.
BirdieBall's Contour/Break Shims & Challenging Hole Reducers include step-by-step instructions, components list, and tips on creating breaks and adding challenge to your putting green with shims and hole reducers.
BirdieBall Contour/Break Shims & Challenging Hole Reducers—Create Breaks and Contours—diagram illustrates different shim and reducer placements for edge, corner, and uphill golf putting practice on rectangular greens.

Contour/Break Shims & Challenging Hole Reducers - Create Breaks and Contours

$69.99

The Contour Shims are a great accessory for the creation of breaks and elevation changes. Experiment with different breaks, hills, and holes. The Challenging Hole Reducers make the hole smaller to make sinking a putt just a little more difficult.

To be placed under the putting green, the contour shims will allow you to make countless different breaks on your green. Make a left-to-right break, a right-to left break, the hole twice as deep, the hole smaller, and so much more. The possibilities are endless. 

Specifications

- 1 Double Depth Cup to use with all of your single-depth (1/2") shims

- 18" Circle Shim (1/2" thick) with two different hole placement options to create different breaks into the hole

- 12" Circle Shim (1/2" thick)

- 6" Circle Shim (1/2" thick)

- 3 long, snake-like shims

- 6 Hole Reducers (comes with a single-depth and double-depth version of each)

  • Circle "donut" Hole Reduction Insert
  • Half Moon Hole Reduction Insert
  • Small Crescent Hole Reduction Insert
Shipping Info

Current shipping times and full shipping info can be found here

My Golf Spy

Best Indoor Putting Green ('20 - '22) | Most Wanted Putting Mat ('23 - '24) | “The roll of the Birdieball Putting Mat is truly exceptional. Thanks to its patented aerated foam technology, the mat provides a smooth and true roll that closely resembles the feel of a natural grass green. Golfers can expect a consistent and predictable roll every time they practice on their putting on the Birdieball Putting Mat.”

Sports Illustrated

Most Realistic Roll (2024) | “The secret to the BirdieBall's realistic roll lies in its carefully engineered sub-base. This dense, spongy foam expertly mimics the soft root system of a well-manicured putting green. Meanwhile, the perfectly flat surface ensures a smooth, wobble-free roll. As a result, this is the only indoor putting mat on the market with this level of authenticity.”

Golfer's Authority

"Tour players and teaching pros use BirdieBall mats for a reason - it's the closest thing to an actual green you'll find indoors. The secret's in their aerated polymer surface (basically tiny air pockets that make the ball react like it's on grass). You get three speed options that match Stimpmeter readings from 11 to 13 - that's the same speed as most country club greens.

Our RollTech™ Putting Mat Technology

Our proprietary RollTech™ foam sets our greens apart and makes them roll true.
Learn More About our Putting Tech

WHAT SETS OUR GREENS APART?

Our putting mats were created for the discerning golfer who understands the importance of an authentic roll, grain, and speed. BirdieBall putting greens are manufactured using a patented, aerated foam technology that can be perfectly tailored to your unique style.

MORE ACCURATE

AUTHENTIC GRAIN & STIMP SPEEDS

BirdieBall Indoor Greens replicate a natural putting green's directional grain. Choose your stimp speed based on what courses you play most. Easily manipulate the speed at home with our handy stimp maintenance brush.

MORE PORTABLE

ROLLS UP FOR EASY STORAGE

Portable and light-weight, BirdieBall indoor putting mats roll up for storage and lay flat for a perfect roll, every time.

MORE REALISTIC

DROP-IN CUPS & EXTRACTION FLAGS

Our greens are dense and thick enough for the ball to fall into the hole without needing an uphill ramp. Easily lift the extraction flag to retrieve your ball.

MORE CONFIGURATIONS

A SIZE THAT FITS YOUR NEEDS

Fully customize every feature of your dream green, with the ability to brand your green and flag pins with your logo.

MORE FEEDBACK

REVOLUTIONARY PUTTING PRACTICE

Our patented technology gives you perfect feedback. Perfect feedback means perfect practice.

MORE CONSISTENT

ROLLED FLAT

We roll our greens to be perfectly flat, just like a well maintained natural putting green

Consistent Roll for Meaningful Practice

No wobble, real grain, true roll. The results speak for themselves
Explore RollTech™ Mats

COMPARE PUTTING MATS

Outdoor Putting Green - Backyard Tour Grade Synthetic Turf (Sizes Available)

Outdoor Putting Green - Backyard Tour Grade Synthetic Turf (Sizes Available)

4' x 10' Standard Putting Mat - Indoor RollTech™ Putting Green

4' x 10' Standard Putting Mat - Indoor RollTech™ Putting Green

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Need Help? Meet Caddie

Caddie will help narrow down which products are best for you! Just answer a few quick questions and Caddie will show you tailored recommendations based on your skill level, goals, and practice space.

Family Owned & Operated 7,500+ Five-Star Reviews

Overall rating: 4.887097 / 5 from 62 reviews.

AI Generated Review Summary

The Contour Shims and Challenging Hole Reducers are highly praised for their effectiveness in creating various breaks and elevation changes on the putting green. Customers appreciate the versatility and the ability to make the hole smaller, making putting practice more challenging and realistic.

Summary topics

  • Shims and Hole Reducers Effectiveness: 16%
  • Practice Mat Quality: 18%

Review topics: ["quality","shipping","customer service","works","service","mat","shims","putts","green","breaks","addition","practice","roll","putting","hole reducers","idea","option"].

Review highlights

  • "I highly recommend both the mat and shims/hole reducers." — Robert R.
  • "The shims and hole reducers have been incredible for practicing breaking putts and honing my accuracy on shorter putts." — Dan Y.
  • "Love my shims and my indoor/outdoor oversized matt." — Chris F.

Reviews

Works well

"Great for working on sloped putts with the larger mats. We'll worth the investment."

— Jason M. (5/5)

SIM putting surface and contour shimmer kit

"The simulator green and accessories have been great. I purchased the 7x11 putting surface along with contour shims and having fun setting up various breaks and slopes. Would definitely buy it again!"

— Christopher T. (5/5)

Great putting matt for indoors

"Putting matt is great and I love the width, and ability to use the shims to create breaks. Stores easily with the storage sack."

— Elizabeth G. (5/5)

Awesome tool to assist with

"Awesome tool to assist with putting around the cup."

— Lemuel P. (5/5)

High Quality

"High Quality"

— Terry S. (5/5)

PGA Dreams, Backyard Realities, and One Very Confused Lab

"Who needs Augusta when you’ve got contour shims and hole reducers? My backyard putting green now has more undulation than my actual course—thanks to these magical little wedges, I can practice left-to-right breakers, downhill knee-knockers, and the dreaded “why did I think this was a good idea” sliders. The hole reducers? Brutal. Humbling. Perfect. Nothing like aiming at a cup the size of a quarter to really expose how many putts I’ve been getting away with. But hey, growth. Meanwhile, my chocolate lab thinks he's in a live-action version of Whac-A-Mole—except instead of moles, it’s golf balls disappearing into tiny holes. He’s still retrieving like a pro, though now he has to work a little harder for the victory lap. Good for him. Good for me. Great for my future golf game. If I start wearing a green jacket to mow the lawn, you’ll know why."

— Robert G. (5/5)

Love the putting green. Even

"Love the putting green. Even my grand kids are putting."

— Mary P. (5/5)

Contour shims + 1 hour block + glass of wine makes for a nice winter night.

"Amazing product. Use it to hone 1-8 feet. Contour shims + 1 hour block + glass of wine makes for a nice winter night. I have also developed games to make the practice meaningful."

— Michael M. (5/5)

Best ever!!!!

"The putting mat is amazing, it is the best practice mat I have ever had,"

— Ed S. (5/5)

Mix it up

"These are great additions for my double depth green - mix it up with breaks!"

— Ryan O. (5/5)

Q&A