SleepDri Budget Reuse Quilted Underpad 34 x 36 w Flaps Toe Spreader Separators Wobble Board * The new Hip Kits Wobble Board * The new Thera Band© Rocker and Wobble Boards combine an aggressive anti slip base design with a sensory stimulation surface to offer a new performance level to balance training * The Rocker Board moves forward and backward while the Wobble Board has a rounded bottom that moves in all directions * Both are made from lightweight molded plastic * Wobble Board: 16 1 8 diameter * Measurement Range: BP: 0~299mmHg With Tuck In Flaps * 34 x 36 * 50 50% poly cotton top cover quilted to a highly absorbent poly rayon soaker * Waterproof backing is PVC coated * One underpad per package *