Calf Stretch Board: This incline board is ideal for all ages and fitness Levels. The maximum load capacity within 150 kg. And the uneven surface prevents slipping. Portable and easy to assemble for direct use. Adjustable incline board: There are 4 positions: 20, 30, 40, 45.You have the options of differing degrees of mild to strong calf stretches. Helps make your muscles more stretch during exercise and reduces your risk of injury. Stretching Muscle and Pain Relief: Not only helpful to stretching before/after work out, but also helps restore X-shaped legs, O-shaped legs and relieve plantar fasciitis, Achilles tendon injury, calf tension and other ankle pain. Sturdy and Durable: ABS material, tasteless, durable, corrosion resistant, easy to clean and not deformed. Anti-slip design on the bottom, can use it on any floor and multiple modes to meet your different needs. Sturdy triangular structure design, safe and stable, not shaking. Portable and Convenient: A very popular alternative to the heavy wooden slant boards, this light-weighted foot slant board is suitable for home, office, travel and indoor and outdoor sports. Heel Protection Design A raised foam pad heel protection plate locks the heel in place while nonslip treads prevent the foot from slipping while in use. Non-Slip Design The underside of the stretch board is made of non-slip rubber so that the carrier does not slip on any surface during use. Product material: ABS environmental protection material Size: 30.5*27 cm Weight: 1466g Color: blue Package includes: 1pc * Stretcher