The Ergochair ERGO-SCOOT, No. 5160118, from BendPak, features adjustable risers that allow it to convert from a low-profile creeper to a rolling work seat. Its wide-diameter wheels allow the seat to travel over rough surfaces easily and are made of thermoplastic rubber for chemical resistance. The spring-loaded backrest has an adjustment angle of 0 degrees to nearly 60 degrees. The backrest and seat are padded for comfort and are covered in non-slip, abrasion-resistant, textured vinyl. Locking pins can adjust the seat height from 14" to 18" off the ground, and heavy duty ball-bearing swivel casters create a stable platform regardless of seat position.