Assembled with tool free removable back and arms 1 aluminum frame is lightweight sturdy and corrosion resistant Height adjusts in 1 increments with unique ËDual ColumnÌ extension (16 - 21 ) Armrest is reversible to accomodate any bathroom 3 position back depth is adjustable from 18 - 19 in .5 increments Extra large suction cups provide added safety Seat Dimensions: 25.5 W x 18 D Limited Lifetime Warranty HCPCS Suggested Code: E0248