Durable Castors: The castors have undergone over 100,000 rigorous cycles of endurance testing, ensuring long-lasting performance for your peace of mind.Heavy-Duty Star Base: The five-star base has passed the static pressure test of 1,136 kg for 1 minute without breaking.Specifications:- Colour: Dove Grey- Materials: Foam, PA (Polyamide) Plastic, Polyester, Plywood, Steel, Non-Woven Fabric- Overall Size: 25.2"D x 25.2"W x (37.8"-40.9"H) 64 x 64 x 96-104 cm- Seat Height: 16.9"-20.1" (43-51 cm)- Seat Size: 19.7"D x 19.3"W (50 x 49 cm)- Backrest Size: 20.1"W x 20.9"H (51 x 53 cm)- Armrest Height (from seat): 8.2" (21 cm)- Armrest Height (from floor): 25.2"-28.3" (64-72 cm)- Product Weight: 22 lb (10 kg)- Max Static Load Capacity: 265 lb (120 kg)Package Contents:- 1 x Office Chair- 1 x Accessory Kit- 1 x InstructionsSONGMICS Notes:- Avoid prolonged exposure to direct sunlight.- Keep the swivel chair away from sharp or pointed objects to prevent surface damage.