I use this calf block with my Smith Machine and it is a gamechanger! Totally worth the money, hits the calf perfectly.

Had been considering building my own calf block when this popped up on my feed. Was intrigued by the premise, so I lept. After trying it out, it is far beyond anything I've experienced before. The stretch and overall range of motion are unmatched. And you feel solid throughout the range of motion – no slip, no loss of stability. I've got it positioned in front of a Bells of Steel Cable Tower and it slips right under the front foot for a snug fit. This thing is awesome – wish I had found it sooner!

So happy I got this for my studio, and worth every penny. Mainly use it for calf raises on the smith machine, and it is much better than any calf block I have found. The curved surface allows a full range, and the grip is solid and supportive. Highly recommended!!

Best tool I’ve used for calf raises. Very well made. Really helps you get a real stretch. 10/10

These u-cups work perfectly. They easily snap on and off the 2x2” posts on my squat rack in seconds. I can perform the full range of deep stretch platform calf raises with room to spare.
They are heavy duty and completely safe.
So much better than weight vests or clunky belts with chains and plates. I recommend

So happy I randomly found this on a YouTube channel. Once I got delivered I tried it out right away, and I love it. Great addition to my home gym. Small footprint and gets the job done. Love the stretch I get too. Just doing body weight alone with 20 reps gets the burn going. Solid quality build too. Highly recommend.

Well built and high quality!

I bought this after seeing the review on hybrid fitness. Mike said it was a good calf raise and I agree. It’s super sturdy and well built. Using it with my belt squat I feel like I have a calf raise machine for 100 bucks. Definitely worth it.

Much better than standard calf blocks - better stretch, very stable, better calf raise motion

Incredible stretch on this calf block - not comparable to a standard block. Solid as a tank! An excellent purchase.

Well built, comfortable and should last for a lifetime!

Great powdercoat finish, super heavy duty, does not move. Overall an excellent product! One minor ding that I'm not subtracting a star for: The skateboard tape isn't staying stuck very well around the two bottom edges, but it functionally hasn't made any difference for me. I use this in conjunction with a safety squat bar for calf raises and it works a treat! Would definitely recommend to anyone looking for a calf raise block!

Grips like glue! Great piece dor my home gym that allows me to focus work in my valves.

This is by far the best calf raise block I have ever owned, and I have owned several. The height and curve allow for a good stretch, and provide a superior experience to a flat surface. Oh, and the build is extremely solid. Well done, U4C.

So much better way to load up my calf workouts