Attentions: If you wanna choose color, please contact us by email or leave us a massage. PU leather dental chair as picture are in Stock, but if you choose another color, it will cost 2-3 days to produce it. Micro Fiber Leather dental chair are custom-made, it will cost 3-4 days to produce it. Function: The special pressure distribution design, enlarge the contact area between buttocks and thigh. Decrease the stress, to protect the spine. The ergonomic tilt on the stool helps you maintain the natural curve of your back. This reduces disc pressure and muscle strain, which may reduce lower back pain. According to the ergonomics, the unique concaved-design backrest and the seat conform to the natural curve of your back and buttocks Promotion a healthy posture. Good for relieving the spinal pressure and fatigue, reducing back pain. Material: Backrest, Seat: PU leather or Micro Fiber Leather, High Density Rebound Foam, superior injection plastic board. Travel Distance: 45# Steel, Surface treatment: Chrome Plated or Electrostatic sparyed. Diameter of Five Star Base: High Polised Aluminum Alloy. (Max Capacity: 750KG) Diameter of Cactor: Superior Quality PA Size: Backrest: L380mm x W360mm Seat: L450mm x W410mm x H80mm Travel Distance: 140mm Diameter of Five Star Base: ¦µ560mm Diameter of Cactor: ¦µ50mm N.W.: 13kg G.W.: 14-15kg Packing Size: 75x55x19CM