Industrial swivel chair, with castors, PU foam, black. Supplied = assembled. Frame design = with castors. Seat mechanism = synchronous mechanism with weight adjustment. Seat material = PU foam. Seat colour = black. Type of height adjustment = gas spring. Frame material = plastic. Height adjustment range = 450 - 650 mm. Back rest height = 550 mm. Type of arm rests = without arm rests. Product type = industrial swivel chairs. Certified quality for healthy sitting. Automatic seat inclination adjustment due to Synchro-Activ-Balance. Ideal for predominantly forward-facing sitting position. Back rest tapered toward the top for optimum freedom of movement. Two practical, integrated handles. Height 550 mm, 70 mm adjustment range. Synchronous mechanism: Synchronous movement of seat and back rest follow movements of the user. Contact pressure of back rest can be adjusted for individual body weight. Seat inclination can be adjusted to -12°. Sliding seat for variable seat depth. Stable five-star base made of plastic. With soft castors for hard floors. Ergonomics Synchro-Activ-Balance technology Your advantage Effective prevention of back pain - with seal of approval. The first industrial swivel chair tested and recommended by the German association for back therapy training.