Designed for maximum comfort and functionality, this adjustable-height stool is suitable for home, classroom, or studio use. The seat is made of deep-cushioned black vinyl and has a 13 inch diameter. Compared to hard surfaced models, this padded stool provides many more hours of comfortable sitting. The telescoping legs are made from 18-gauge steel with chrome plating and feature automatic leveling glides. Adjust the legs to move the seat from 24 to 30 inches. The chrome-plated footring serves as a footrest and provides added rigidity.