Squat Wedge Block Adjustable Slant Board, Heavy Duty 3pcs Foam Foot Ankle Knee Stretcher Leg Extender, Incline Platform Ramp For Heel Elevated Exercise and Calf Raise

Super pratique, léger

Although these are constructed of styrofoam, they are sturdy while lightweight. I use them for squats since the range of motion in my ankles is foreshortened, and they do not slip on either a carpet or wooden floor. That being said, use a mat if you are uncertain about the surface you are working out on. Even if over time they chip or crack, it is to be expected since they are not an expensive pair of wedges. I'm happy with them.

Half of the product photos show adjustable blocks being used in both legs, but this listing only delivers one set for a single leg. No way to use stacked or adjusted settings for both legs without buying an extra one.

Product is good. I would not describe it as non slip though. It's smooth dense foam and does move if used not as intended.

These are perfect for me to get deep into a squat. Very sturdy but they DO slide easily depending on your flooring. If you have them on a smooth surface they will slide around, nothing that can’t be fixed with grip tape.