Doctor Buddy is a great little stool for providing comfort when performing office tasks or as an examination or feeding stool when caring for others. 14" diameter seat 20" five-legged injection moulded base C65 dual wheel carpet casters are standard. For hard surface flooring casters specify C65R Swivel stool, seat upholstered in vinyl or fabric with Ultracell foam seat Moisture resistant protection on underside of seat pan