BioFit’s MM Series ergonomic chairs are especially supportive and comfortable for individuals who prefer more upper back support, lumbar support for the low back, and a generous seat shaped for comfort. The backrest is 19 inches high and 18 inches wide, 5 inches taller and 2-1/2 inches wider than the conventional backrest on BioFit chairs. The backrest conforms to the natural curves of the spine and provides lumbar support to reduce low-back fatigue as well as provide upper back support. The ergonomic seat is 21 inches wide by 19 inches deep by 3 inches thick. Its waterfall front is designed for improved circulation and reduced strain on the lower legs. Standard equipment includes the Task Control ergonomic mechanism for pneumatic seat-height adjustment, backrest tilt and backrest-height adjustment. The upholstery is protected with bumperguards for durability in plants, laboratories and other heavy-duty applications. MM Series chairs are backed by BioFit’s 13-Year, 24/7 Sure-Seat Warranty.www.biofit.com/mm/mm_series.html