The Roll-InBuddy Heavy Duty, model SB4, is a wheelchair shower commode designed for use by individuals with balance, lower extremity, mobility or severe physical disabilities or spinal cord injury. It is ergonomically designed to be used in roll-in showers and the height of the chair is adjustable to accommodate tall users. It features a cut-out commode seat with a commode pan that attaches under the seat, and it is capable of rolling over toilets up to 21 inches tall with the pan removed. Other features include removable foldaway arms; removable, adjustable footrests; backrest; adjustable neck rest; push bar mounted at the top of the backrest; and lap and chest belts. The Roll-InBuddy Heavy Duty is corrosion and mold resistant and can be assembled without tools. FRAME (WxD): Rolling base is 18 x 27 inches without footrests and 18 x 39 inches with footrests. SEAT (WxD): 18 x 17 inches. The backrest is 18 inches wide x 19 inches high. The arm width is 18 inches inside and 21 inches outside. The floor-to-seat height adjusts from 21 to 24 inches. CASTERS: 5-inch locking casters. CAPACITY: 330 pounds.