Robust frame construction made of aluminum. Continuous seat height adjustment. Point-synchronous mechanism for adjusting seat and backrest tilt, individually adjustable to body weight and multiple locking options. The flexible lumbar support provides constant, pleasant pressure and is adjustable via the height adjustment of the backrest. 4D armrests with softpad covering: horizontally, vertically, width, and radially adjustable. Ergonomic seat with adjustable seat depth. Continuous seat tilt adjustment. Headrest adjustable in height and tilt. Backrest height adjustable in four stages. Breathable, abrasion-resistant mesh fabric. Designer base made of polished aluminum. Unbraked multifunctional casters. Fold-out leg rest for relaxation. Optional notebook holder. This chair meets all safety requirements for office and contract use according to DIN EN 1335 Part 1-3. This item is delivered unassembled. Assembly can be completed in a few simple steps.