Is a slope reader legal in tournament play?

No. Under the rules of golf, gauging slope with a device like this is not allowed in competition. It is meant for practice rounds and practice greens.

Does it work with any putter?

Yes. It is a separate disc you place on the green behind the ball, so the putter you use does not matter.

What does it actually tell me?

It shows the tilt of the green at that spot with a bubble level, so you can see which way the putt will break. It does not measure distance or speed.

One slope reader. Nothing else is included.

Is it worth it over a green-reading book?

A book maps greens you play often; this reads the actual slope anywhere. It suits practice and learning to read break by eye rather than competition.

Where is the Slope Reader-Green cheapest?

At Walmart, for $10.18, as of our latest check.

Where can I buy the Slope Reader-Green?

2 stores we checked sell it, including Walmart, eBay.

Unbranded

Slope Reader-Green

Best price now

$10.18at WalmartChecked 7 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit Walmart

Unbranded

Slope Reader-Green

Best price now

$10.18at WalmartChecked 7 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Lowest price today: $10.18 at Walmart (checked Nov 15, 2026).
Checked at 2 stores.

Our take on the Slope Reader-Green

A small zinc alloy disc with a bubble level that you set behind your ball to read the tilt of a putting green. It works with any putter and any green, and the idea is to practice with it until you learn to judge break by eye. It is a training aid, not a rangefinder or a legal device for tournament play. Compared with laser rangefinders and green-reading books, it is simpler and cheaper but only tells you the fall line, not distance or speed.

Best forGolfers who struggle to read break on puttsPractice-green and home putting sessionsBeginners learning to see slope

Pros

Bubble level gives a direct read of the green's tilt
Works with any putter and on any green
Small zinc alloy body that fits in a pocket
Simple to use: set it behind the ball and look
No batteries or setup needed

Cons

Only shows slope, not speed or distance
Not permitted in competition play under the rules of golf
Bubble level can be hard to read in low light
Accuracy depends on placing it flat and level

Slope Reader-Green prices at every store

WalmartNew
In stockSold by MerryHannaReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$10.18Free shippingChecked 7 h ago
Visit Walmart
eBayNew
In stock
$14.50Free shippingChecked 7 h ago
Visit eBay

Slope Reader-Green price history

Lowest price we've seen: $14.50 on Nov 15 at eBay. Tracked across 1 store since Nov 15.

About the Slope Reader-Green

The Slope Reader is a golf accessory that works as a ball marker and helps you identify the slope of the green. It has a high-precision bubble level for reading the slope.

To use it, place it behind your ball and read the slope of the green. It works with any type of putter and can be used on any green. It is made of zinc alloy.

Color: Green
Material: Zinc alloy
Type: Golf ball marker with bubble level
Compatibility: Any type of putter, any green
In the box: 1 x Slope Reader

Specifications

color: GreenSource

Questions and answers

Is a slope reader legal in tournament play?: No. Under the rules of golf, gauging slope with a device like this is not allowed in competition. It is meant for practice rounds and practice greens.
Does it work with any putter?: Yes. It is a separate disc you place on the green behind the ball, so the putter you use does not matter.
What does it actually tell me?: It shows the tilt of the green at that spot with a bubble level, so you can see which way the putt will break. It does not measure distance or speed.
What is in the box?: One slope reader. Nothing else is included.
Is it worth it over a green-reading book?: A book maps greens you play often; this reads the actual slope anywhere. It suits practice and learning to read break by eye rather than competition.
What is it made of?: Zinc alloy, in a green finish.
Where is the Slope Reader-Green cheapest?: At Walmart, for $10.18, as of our latest check.
Where can I buy the Slope Reader-Green?: 2 stores we checked sell it, including Walmart, eBay.

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