Calf Stretch Board: This slant board is great for all ages and fitness levels. The maximum load capacity is less than 150 kg. The uneven surface prevents slipping. Portable and easy to assemble, ready to go. Adjustable Tilt Plate: There are 4 positions: 20, 30, 40, 45. You can choose between different degrees of calf stretches from soft to strong. Helps stretch muscles during exercise and reduce the risk of injury. Muscle Stretching Pain Relief: Not only helps stretch before and after exercise, but also helps restore legs by X-shape, O-shape legs, relieve ankle pain such as plantar fasciitis, leg injuries, Achilles tendon, calf strain, etc. Sturdy and durable: material ABS, odorless, durable, corrosion resistant, easy to clean, not deformed. The non-slip design at the bottom can be used on any floor, with multiple modes to meet your different needs. The sturdy triangular structure design is safe and stable without shaking. PORTABLE AND CONVENIENT: This lightweight slant board is a very popular alternative to sturdy wooden slant boards for home, office, travel and outdoor sports. interior and exterior.