This product is shaped in the form of a cylinder and will prevent the hand from closing completely thereby improving flexion contractures. Adjustable strap allows product to remain in position. Fits right or left hand. Machine washable and dryable. Latex free. Ventopedic products are designed to effectively draw moisture away from the skin while providing soft cushioning support. Cylinder Circumference: 3.5 in (8.9 cm) – Cylinder Diameter: 1 in (2.5 cm) – Cylinder Length: 4 in (10 cm).