Material: PU (seat and backrest), plastic base. Acc. to DIN 68877. Ideal for production and laboratory work. Ergonomically shaped backrest and seat with integrated lumbar support, pelvic support and rounded seat front edge. Permanent-contact backrest with height adjustment Continuous seat-height adjustment by safety gas spring with protective cover Surface is washable and can be disinfected GS-certified 10 year warranty Delivered unassembled. Sustainability Recyclable due to the absence of composite materials. Durable (10-year guarantee). Awarded the “TÜV Rheinland certified - tested for emissions and harmful substances” test certification. Office chair Basic PU foam, seat height 620-890 mm, with foot ring Soft seat-stop rollers for hard floors. Fixed when loaded, rollable when unloaded. Chrome-plated, height-adjustable foot ring. Resistant to sharp objects. Height backrest: 380 mm. Seat: W 440 x D 410 mm. Base Ø: 680 mm.