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Black Diamond
Forearm Trainer

4.534883720930233 out of 5 stars
43 Reviews
$12.95
Color:One Color

Size:

Quantity

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Why We Like The Black Diamond Forearm Trainer

From crimpy projects to chilly shaded crags, we pack along the Black Diamond Forearm Trainer to warm up before hopping on the wall. Giving this rubber ring some squeezes prior to pulling on rock helps keep our fingers and elbows happy, staving off send-killing injuries.


Details

  • Convenient forearm trainer for warming up
  • Rubber construction holds shape and strength
  • Compact size fits discreetly in your pack
  • Item #BLD1021

This item is made with PFAS chemicals and cannot be shipped to some states. View Shipping Policy

Material
rubber
Claimed Weight
4oz
Activity
climbing training
Manufacturer Warranty
1 year

What do you think about this product?

Overall Rating

4.5 based on 43 ratings

Review Summary

1 Stars - 1 reviews
2 Stars - 1 reviews
3 Stars - 3 reviews
4 Stars - 7 reviews
5 Stars - 31 reviews

Here's what customers have to say

The Black Diamond Forearm Trainer provides an effective and convenient way to strengthen the forearms. Many users praise its simple yet durable design, noting it is suitable for a range of gripping exercises. Some find the resistance level suitable, while others would prefer a more challenging option. Overall, the product is widely recommended as a useful tool for building grip strength.

AI-generated from the text of customer reviews.

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5 out of 5 stars

August 26, 2025

Forearm Trainer

Best Forearm Trainer on the market. I have had one of these for over 20 years. Great to use in the car or working at the computer. Way better than similar iems sold at the online shpping sites.

Richard P.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

5 out of 5 stars

August 25, 2025

Forearms

I’ve been using one of these continuously since 1985. “Same as it ever was. ”

Christopher B.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

5 out of 5 stars

February 12, 2025

Rubber

It’s a rubber circle it provides good resistance level for me

Connor J.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

5 out of 5 stars

January 5, 2025

Any little bit helps.

Not a super resistant forearm trainer, but I leave it in my car for use as I’m bored on the road, can make it tougher by altering hand position or just squeezing with a finger or two. It’s held up well and has not deformed yet.

Graham V.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

5 out of 5 stars

December 27, 2024

Tiny but mighty

My 19 y/o college son wanted a forearm trainer to have in his dorm and this one is perfect! It’s tiny but it is definitely a forearm workout. I tried it myself and was impressed.

Jenni O.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

5 out of 5 stars

December 23, 2024

Lifelong Travel Partner

I have had several of these Forearm Trainers for years, some I have given away as gifts, some I have lost, all I have used and relied upon. Aside from research showing that grip strength is related to health and longevity, It is an easy-to-carry piece of exercise equipment, has no issues with travel restrictions around the world and has remained a classic over the decades. I keep one in each vehicle and my travel packs.

Stanley B.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

5 out of 5 stars

December 20, 2024

Forearm Trainer

A great tool to keep in the car to destress and work your forearms while communting.

Cody M.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

5 out of 5 stars

December 15, 2024

Great Tool

The forearm trainer is a great tool to use while sitting in meetings or watching TV.

Tonie M.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

3 out of 5 stars

August 11, 2024

Mine broke

Good while it lasted, but broke completely through on one side and is now useless.

Kootenay
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

4 out of 5 stars

February 22, 2024

Great for my forearms!

After using this for a couple times, I can tell my forearms are already adjusting. Really easy to grip, great resistance, and fantastic results. One thing that I would've liked is the opportunity to stick all your fingers in the middle of the donut and use finger strength to expand it: that's pretty niche but otherwise it's a perfect product for me!

Ian O.
blackdiamondequipment.com

Originally reviewed on blackdiamondequipment.com

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Learn more about Forearm Trainer

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