Sturdy Material: Made of medical-grade stainless steel, the product is well-built and sturdy, its non-slip design protects your heel and calf muscles. Non-slip Design: Features a textured surface and plastic/rubber lip for the heels to prevent my feet from slipping off the board. Easy to use and carry: you can stand or sit on the chair, choose the right position, relieve your muscles, keep your body healthy. These lightweight angled legs are suitable and flexible for home, office, travel, and outdoors. They are foldable and very easy to carry. ADJUSTABLE TILT PANEL - This adjustable balance tray helps stretch your muscles and calves, causing a plantar fasciitis flare-up. Helps you stretch properly and reduce the risk of injury. Size: 32 x 28 x 8 cm