Key FeaturesHigh Durability: This chair is made of PU that has good resilience and metal with good rust and corrosion resistance, so it is more durable and can be used for a long time.High Stability: With five-disc foot nails and reinforced bottom, this chair is stable enough to be sat on.High Load-bearing Capacity: With a high load-bearing capacity, this chair can bear a maximum weight of 100kg. Adjustable Height: The height of the chair is adjustable ranging from 42cm to 54cm, you can adjust it with the adjustment handle under the seat according to your own needs.Rotatable Seat: The seat of the chair is rotatable, allowing you to rotate freely when sitting.Foot-Rest Design: There is a foot-rest design at the bottom of the chair, you can put your feet on it when sitting on the chair, bringing you a better sitting experience. DetailsDisc Foot Nails: There are disc foot nails at the bottom of the chair, which ensure its stability.Backrest Design: The chair has a backrest to support your back when sitting, which can relieve muscle soreness and relax your body. SpecificationCushion Material: PUFrame Material: MetalColor: Black Maximum Load Capacity: 100kg/220lbsHeight: 42-54cm/16.54-21.26inBackrest Height: 28cm/11.02inSeat Cushion Diameter: 32cm/12.6inBottom Diameter: 35cm/13.78in Package Included1* Backrest1* Backrest Shelf1* Seat Surface1* Tray (with Handle)1* Air Rod1* Bottom5* Foot Pegs5* Screws2* Long Screws