Stay focused on your calvesU-Cups® were designed to prevent tipping backward while doing standing barbell calf raises. The U-shaped chamber contains the barbell which lets you focus 100% on the mind-muscle connection. Build calf muscle fasterResearch shows free-weight exercises require greater muscle fiber recruitment...

"The Calf Curve™ is the best calf raise block out there for full range of motion calf exercises." Yes, calf blocks aren't complicated... DIYing takes a few bucks and about an hour (if that). But, some designs offer a better experience and more calf...