I-Fit Shower Chair with Back features: Large contoured seating surface (18"x20") Tool-Less Assembly: No hardware required: Snaps together in seconds! Plastic legs with twist height adjustment and built in numbering system to keep all legs level Ergonomic backrest Large wide flanged rubber tips for additional security Product Weight Capacity: 400 lbs Frame: Tool-less assembly; NO HARDWARE Seat Surface Depth: 18" Seat Width: 20" Seat Height: Range with height adjustments: 15"-21" Height Adjustment: Seat to floor height adjustment range: 15"-21" Seat To Back Height: 14-1/4" Overall Width: At Base: 16-1/4" Overall Depth: At Base: 17-1/4" Color: White Product is non-returnable