Sit comfortably for up to 8 hours with this TC Office Maxi Ergo Chair, which features a heavy duty thick foam and contoured back. An inflatable lumbar pump features as well as an integral seat slide and an asynchro torsion mechanism which allows the seat angle and backrest to be fixed or set to free float in 2:1 ratio. The ratchet back accommodates all users up to 115kg.This chair has been tested to BS 1335 (2000) Part 2 certification and comes with a 5 year guarantee. . High back operator chair. Contoured back. Inflatable lumbar pump. Asynchro torsion mechanism. Heavy duty thick foam. Integral seat slide. Ratchet back to accommodate all users. Suitable for up to 8 hours use. Backrest and seat angle can be fixed or set to free float in 2:1 ratio. Tested to BS 1335 (2000) Part 2 certification. Suitable for users up to 115 kg. 5 year guarantee. Self-assembly required. Approximate dimensions (mm) H1080-1260 W700 D700. Weight 13KG* Self Assembly Required* Please note that this product is delivered direct from our supplier and may take a little longer to arrive.