Rocker Board 13 1 8 x 14 Cushions APP Infused with IonTech minerals in The unfolded towel measures Infused with IonTech minerals in tape that emit ions Premium 23 die cast aluminum base with satin finish top * 5 leg design for greater stability * Full size diameter top and base for comfort and stability * 4 thick seat for extra comfort * Black hooded dual wheel nylon casters * Pneumatic height adjustment * All seats have 3 4 thick solid plywood base * Lever controls height * Knock down design saves on shipping * Easy no tools required assembly * Premium stain resistant woven knit backed vinyl upholstery * 250 lbs Rocker 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 * Rocker Board: 13 1 8 x 14 *