[Recommended by Therapists] Our slant board is not only helpful for stretching before/after exercise but also beneficial to the body's recovery 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 materials are non-toxic, odorless, waterproof, and oil-proof, which is not only recyclable, but also degrades naturally without causing white pollution. The calf stretcher is lightweight, sturdy, non-deformable and easy to carry. Our foot stretcher weighs only 0.9 lbs, but can to 480 lbs. [Adjustable Slant Board] 5 adjustable incline settings: 8.5 degree, 17 degree, 25.5 degree, 34 degree and 180 degree. You can 5 different angles for on your needs, and the detachability allows you and your family to the calf stretcher at the time. they can also be moved to place in the house at will and can be reused many . Remember to find a chair or lean against a door or wall as support during training. [Multi-scene ] 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 stamina. The slant board helps you properly and reduce the chance of injury. [Slant Board Set ] Our 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 the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.