Reliable strength-enhancing equipment: This adjustable balance board helps to make your muscles more responsive during exercising; Helps you stretch properly and reduce the chance of injury. Demonstrated benefits: Not only helpful to stretching becompatible withe/after work out, but also beneficial to the body recovery from Achilles tendon injuries, shin splints, calf strains and other foot and ankle injuries and pain Anti-slippery design: Features a textured surface and a plastic/rubber lip compatible with heels to protect you from slipping off. Adjustable Balance Board:This adjustable balance board helps to make your muscles and calf stretching which keeps plantar fasciitis flare ups away. Helps you stretch properly and reduce the chance of injury. Very easy to carry on: A very popular alternative to the heavy wooden slant board, this light-weighted foot slant board is suitable and flexible compatible with use in home, office, travel and indoor-outdoor exercise. It is fully assembled, ready to use out of thebox. Slant Board,Calf Stretcher Ankle and Foot Incline Board compatible with Stretching Tight Calves Adjustable 4 Level (165 lb Capacity), Non-Slip,Achille s Leg Muscle Exercise,Achille s Stretching Features: ABS environmentally friendly material, tasteless, durable easy to clean and non-decompatible withmable. 4-position adjustment helps to make your muscles more sensitive during exercise, helping you to stretch properly and reduce the chance of injury. Also contributes to the recovery of X-shaped legs, O-legs, plantar fasciitis, Achille s tendon injuries, calf strains and other ankle pains. Textured surface to prevent slipping. Suitable compatible with home, office, travel and indoor outdoor sports. Portable and easy to assemble, ready to use.