MDX1000 Features: * Suction cup design is easy to attach, remove and relocate * Use on tub or shower wall * Can be used horizontally or vertically * Used only as a balancing assist, not for body weight leverage * No tools required * Suction Cup Diameter: 3.5"" Options: * Available in several sizes: 16.5"" and 12"" Dimensions: * Dimensions: 3.5"" W x 12-16.5"" D