Furniture49’s WHISTLER chair series proves that you do not need to compromise quality for price, and redefines mainstream classroom furniture. The shell consists of heavy duty, static free, high-density polypropylene material with a light grain surface and injection molded into a one-piece shell unit with 17 heavy duty reinforcing structural ribs. The ribbing provides the one of the most durable shells available while giving lateral movement and flexibility. The shell is ergonomically designed with waterfall front and lumbar support which provides for proper posture and comfort, and the opening in the back provides added comfort as well as a handle grip. The shell is attached to the tubular steel frame with steel rivets underneath the seat, which offers no exposed hardware on the surface. The WHISTLER chair series combines true flexibility, high end design and student centered ergonomics.