Material specifications: high density plastic with blow molded treatment seat and backrest + heavy duty powder coated steel frame. Color:White Surface + Grey Metal Legs Open Dimensions:Chair Height 34.65 Inches,Steel Tube:25*1.0mm Weight:4.6kg Max Weight Capacity:200kg (440lbs) Special Features 1. The original design makes you more comfortable Seat: not flat, designed as a curved backrest for hips: designed as a curve for the back groove on the seat: in rainy days, water can flow on the seat when the chair is outdoors. The holes on the backrest make it easy to carry and move, foldable for easy storage 2. Heavy duty sturdy design makes the chair very strong Top thickness:5cm Steel tube diameter:25mm Support rod:2 support bars 3. Indoor Versatile: office chair, dinner chair, outdoor trade shows: any outdoor occasion such as barbecue, camping, etc. 4. How to clean, scrub the surface with soap and water. If necessary, use a brush. For some stubborn stains, try to use mineral spirit to clean. Package 4 x Folding Chair