Slant Board increases extension in the lower and upper back while stretching the calves.
Made of a composite plastic rated over 500 lbs. Adjusts to 4 levels and folds flat (3-inches) to store easily. Levels are 10in, 15in, 20in and 30in. The last slot on the board makes an excellent hand-hold for stretching. Non-slip top measures 14x14in.