Topstar Operator Chair Power Star Profi. Adjustable Backrest Depth: No. Armrest: Fixed. Assembly: Required. Back Adjustment: Height. Back Height Adjustment: Yes. Bearing Capacity (Max): 110 kg. Body Balance System: No. Chair Seat/Back Covering: Fabric. Expandable: No. Fire Retardant: No. Frame Colour: Black, Silver. Gliders: No. GS Safety Tested: Yes. Height Adjustable: Height Adjustable. Installation Service: 1 x Operator Chair. Installation Service: No. Lumber Support: Yes. Material: Fabric. Material Frame: Chrome, Plastic. Number of Castors: 5. Recommended Use (Max): 8 Hour/Day. Seat Angle Adjustment: No. Seat Depth Adjustment: No. Self-Assembly: Yes. Stackable: No. Tilt Tension: Yes. Type of Feet: Starbase, Metal. Type of Mechanism: Permanent Contact. Weight: 14000 g. Seat Height Adjustment (Max): 550 mm. Seat Height Adjustment (Min): 420 mm. Seat Width: 460 mm. Dimensions: 580 x 460 x 460 mm (h x w x d). Colour: Black.