With 5 adjustable angles (20°, 30°, 35°, 40°, 45°) and a spacious footrest that fits all foot sizes, it adapts to beginners, fitness enthusiasts, and those in therapeutic recovery alike. 4 Pieces Slant Board with Exercise Bands, Premium Calf Stretch Board, Portable Adjustable Slant Board for Calf Stretching, 350LB Weight Capacity Calf Ankle Achilles Physical Therapy Leg Exercisers.