This lightweight, durable 1-pc. design is suitable for use in correctional facilities, institutions, and most intense-use environments. It features injection-molded construction for greater strength. The high-impact polypropylene material is flame retardant and easy to clean. The ergonomic, low back design also helps to prevent leaning and rocking that can lead to chair failure. Legs can be bolted to floor. Stacking Chair, RazorBack, Gray