[Recommended by Therapists] slant board is not only helpful for stretching /after exercise also beneficial to the body's from plantar fasciitis, Achilles tendon injuries, shin splints, calf strains, and other foot and ankle injuries and pain. Regain your flexibility and discover new possibilities with the slant board. Just need a slant board to keep from pain. [Lightweight & Sturdy Material] The slant board for calf stretching is an EPP environmentally friendly materials that are non-toxic, odorless, waterproof, and oil-proof, which is not only recyclable, also degrades naturally without causing white pollution. The calf stretcher is lightweight, sturdy, non-deformable and easy to carry. foot stretcher weighs only 0.9 lbs, can to 480 lbs. [Adjustable Slant Board] 5 adjustable incline : 8.5 degree, 17 degree, 25.5 degree, 34 degree and 180 degree. You can use 5 different angles for on your needs, and the detachability allows you and your family to use the calf stretcher at the same time. they can also be moved to place in at will and can be reused many . to find a chair or lean against a door or wall as support during training. [Multi-scene Use] The slant board are great , office, outdoor and gym to and strengthen your feet and calves. incline wedge slant board helps to make your muscles more sensitive during exercise, your agility, reaction time, strength, and . The slant board helps you properly and reduce the of injury. [Slant Board Set ] slant board for squats contains 3 pieces. Two of are 8.5 degree slant board for calf (12.2 inch L*6.3 inch W*2 inch H), the other one is 17 degree slant board for calf (12.2 inch L*6.3 inch W*4.2 inch H) . Colour:blackMaterial:EPP Package Contents: 3 * pedals Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.