• Board increases extension in the lower and upper back while stretching the calves
• Made of a composite plastic rated over 500lbs.
• Adjusts to 4 levels and folds flat (3-inches) to store easily
• Levels: 10 Degrees, 15 Degrees, 20 Degrees, and 30 Degrees
• Last slot on the board makes an excellent hand-hold for stretching

Product description