Six green BirdieBall Assorted Hole Reduction Inserts & a Double Depth Alignment Cup are arranged in two rows on a white background; one features a white ball, perfect for golf putting training.

Six green BirdieBall Assorted Hole Reduction Inserts & a Double Depth Alignment Cup, designed to reduce putting hole size for golf training, are arranged on a white background. Some inserts are whole; others feature crescent-shaped cutouts.

Assorted Hole Reduction Inserts & Double Depth Alignment Cup

Name: Assorted Hole Reduction Inserts & Double Depth Alignment Cup
Brand: BirdieBall
SKU: PG-1023
Price: 24.99 USD
Availability: InStock

$24.99

Test your putting skills with these six fun hole reduction inserts. Once you have mastered making putts in the standard putting hole (4 1/4"), test your skills by trying to make more difficult putts with these fun hole reducers. They will reduce the size of the hole, and provide interesting aiming points.

You can also create a double depth hole with the double depth cup provided, which aligns the top surface with the cup and hole deepening shim that comes standard with your putting green.

Specifications

6 Hole Reduction Inserts. They can be used in both the standard 1/2" deep cup, and in the 1" deep cup in conjunction with the hole deepening shim that comes with your putting green.

Half Moon (1/2" deep)
Half Moon (1" deep)
Donut Shape (1/2" deep)
Donut Shape (1" deep)
Crescent Moon (1/2" deep)
Crescent Moon (1" deep)

Double Depth Cup (1" deep)

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)

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

Add More Products
to compare

Side-by-Side Comparison
Product

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: 4.6 / 5 from 5 reviews.

AI Generated Review Summary

Summary topics

Review topics: ["shape","holes","roll"].

Review highlights

Reviews

Best Putting Green

"I love this green! It rolls very smooth and true"

— Bo Z. (5/5)

Really helps you get the

"Really helps you get the center or sides of the cup dialed in."

— Carson T. (5/5)

Does what it is supposed to do

"I received these for free along with a green package as part of their Black Friday Special. The hole inserts are perfectly fine, and do what they are intended to do. I just don't see the value in them, or what the purposes of the different shapes are. The hole reducer already included in with the a la carte putting greens is sufficient for providing a smaller hole to aim at. A couple of the crescent shapes provide the same size hole as the donut hole insert. If the different shapes are useful for you, then this set will be great. For me, I just do not see the added value."

— Kyle S. (3/5)

Assorted Hole Reduction Inserts and Double Depth Alignment Cup

"These inserts and the alignment cup are terrific training aids. They are simple to install and remove and make the regular hole seem huge on the course."

— Patrick P. (5/5)

Purchased a 4x10 putting green!

"This green is awesome! The way that the material is treated makes it roll so true to an actual green! I'm in love and addicted to it already. I already recommended it to my brother. Thank you!"

— David M. (5/5)

Assorted Hole Reduction Inserts & Double Depth Alignment Cup

My Golf Spy

Sports Illustrated