Topstar Operator Chair Head Point SY Deluxe. Adjustable Backrest Depth: No. Armrest: Fixed. Assembly: Required. Back Adjustment: Height. Back Height Adjustment: Yes. Bearing Capacity (Max): 110 kg. Body Balance System: Yes. Chair Seat/Back Covering: Mesh, Fabric. Expandable: No. Fire Retardant: No. Frame Colour: Black. Gliders: No. GS Safety Tested: Yes. Height Adjustable: Height Adjustable. Included in Delivery: 1 x Operator Chair. Installation Service: No. Lumbar Support: Yes. Material: Mesh, Fabric. Material Frame: 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, Plastic. Type of Mechanism: Synchro Tilt. Weight: 16000 g. Seat Height Adjustment (Max): 510 mm. Seat Height Adjustment (Min): 390 mm. Seat Width: 470 mm. Dimensions: 590 x 500 x 470 mm (h x w x d). Colour: Black.