A yoga wheel with a natural cork contact surface over a reinforced ABS inner core. The cork gives a firm, slightly textured grip for backbends, spinal mobility, stretching and controlled flexibility work, while the rigid core holds the wheel's shape under body weight. Diameter, width, curvature and cork thickness all affect how the wheel feels in use, and these are produced to order rather than stocked in fixed sizes. Confirm the diameter and width before buying, and note that the core colour and cork finish can be specified for a coordinated look across a range.Key details:Materials: Natural cork surface with a reinforced ABS core