Removable backrest and handrail can be adjusted for both left and right applications. Rust-resistant anodized aluminum frame with non-marring, slip-resistant rubber tips. Drain holes in seat prevent water build-up. Handrail adds security. All hardware and detailed instructions included. Seat height adjusts from 16-1/2 in. – 21-1/2 in.; 1 in. increments. Seat width: 26-1/2 in.; seat depth: 16 in.