Bursa Rete Evo is a medium mesh back office chair with tilt, height adjustable polypropylene lumbar support.Swivel upholstered seat (fabric or leather covered) with height adjustment, polyamide base, rubber castors.Available with:- self-weighting synchronized mechanism- synchronized mechanism (both the backrest and the seat follow the movement of the body)CERTIFICATIONSD.L. 81/80 / EN 1335