The Adjustabl Ankle Incline Board increases extension in the lower and upper back while stretching the calves. The board is made of a composite plastic and rated over 500 lbs.
Adjusts to 4 levels and folds flat (3-inches) to store easily. Levels are 10°, 15°, 20°, and 30°. The last slot on the board makes an excellent hand-hold for stretching.