NPS 24" Adjustable Height Steel Stool with Backrest, Grey VERSATILITY: Our heavy duty grey height adjustable steel stool is dependable and sturdy, ideal for use in industrial and educational settings. Popularly used in art rooms, science labs, classrooms, and as a bar stool or shop stool. Height adjusts in 1 increments up to eight additional inches with chrome-plated leg inserts. Features an adjustable backrest that can be moved two inches up/down and forward/back. This sleek steel stool with a backrest enhances comfort level and supports proper posture while seated. QUALITY AND DURABILITY: Expertly constructed with high grade 18-gauge steel tubing frame to ensure durability and quality of this stool. Ultra-secure fastening and connections throughout: Foot rings are welded to each leg by 4 contact points at each leg for added rigidity Seat pan is impact resistant, crack-proof and tarnish resistant. Steel frame is durable and corrosion proof. SIMPLE TO ADJUST: To adjust, simply press-in small tabs on the leg, and pull to extend up to eight inches. SPECIFICATIONS: 24 Height with 7/8 thick tubing on frame is made using 18 gauge steel. Large comfortable seat is a full 14 diameter. WARRANTY: National Public Seating stands behind its products. Offering an industry leading 10 year full Warranty.