Step up to the next level of durable ergonomic seating with the Comfort Stacking Stool, designed with the human body in mind. • Featuring a durable one-piece black plastic shell attached to a powder-coated silver steel base, this sturdy stool is built to last. • Flexible seat and back provide natural support and maximum comfort. Shell is made with 100% virgin polypropylene with high impact strength, meeting ASTM D256A standard. • Contoured back measures 15"H x 17.5"W. Seat features the ideal slope for comfortable sitting, and measures 25.5"H x 17.5"W x 21"D. • Cantilever base is made with fully welded cold rolled steel tube, finished with electrostatically coated epoxy to provide exceptional scratch-resistance. Includes a 8.75"H built-in foot rest. Floors are protected by heavy duty nylon floor glides. • Stacks up to five high for easy transport and compact storage. • Has achieved GREENGUARD GOLD Certification.