Black Diamond

Forearm Trainer

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!

Great little forearm trainer

I keep this on the coffee table to work out a little bit while I’m watching tv. Overall it’s a great trainer: light, compact, and effective. Would buy again.

Trainer

Purchased for my son to work on his grip. We both enjoy them as he get ready for climbing. I higly recommend.

Give me strength

great trainer for the fore arms. My elbow feels much better after using it. Thanks

Great side item

I use these in my middle school class as achievements gifts. Kids love them! Great size. I’ve tried cheaper ones online but they are generally much smaller.

Effective for beginners

I noticed some strength increase after a couple weeks of 15-min per day training. I imagine at some point I will have to upgrade to something with more resistance but for now this is surprisingly efficient.

25% Grip Strength Increase!

Each year I have a comprehensive medical / physical evaluation through my employer. One of the tests is my grip strength. It is taken annually and over the last ten years it has averaged 55kg. I started using the Black Diamond Forearm Trainer about three months before my last physical. I did 15 reps on each side for three total sets, five days a week for three months. At my last physical, my grip strength had increased to 69kg!! I am not a climber and bought the Forearm Trainer for the sole purpose of increasing my grip strength and improving my forearm definition. It has definitely worked for me, and I highly recommend the trainer for anyone looking to increase strength and / or improve the look of your arms.

Nice arm workout

Very practical but a little soft. I use it in the car while driving since you can perform many repetitions

Fun for fidgeting

Got this to fidget with…will it make me stronger? Proudly not. Is it fun to fidget with? Yep

Once you get to a certain point it no longer becomes a viable tool because its simply not tense enough for intermediate to expert level climbers.