The Cortech RazorBack Chair is a one piece injection molded plastic stack chair designed for extreme environments. The RazorBack Chair is ideal for use as Correctional Facility Furniture, Detention Furniture, Behavioral Health Furniture, and Mental Health Furniture. The RazorBack Chair is also a perfect fit for Schools and Universities, Residential Institutions, Public Safety Facilities and any intense use application. Durable, one piece, injection molded design for increased strength Flame retardant (passes Cal 133 burn test) 1500 lb. static load Passes ASTM F1561-03 Cost effective economical Easy to clean Constructed with high impact "no break" polypropylene Light weight - only 8 lbs Stackable space saving storage Ergonomic low back design - more resistant to chair leaning or rockering Muscle-Back Legs include pilot hole for field drilling to enable bolt down option Manufactured to ISO Quality Standards 10 year warranty Colors: 86484BK Black, 86484B Buff, 86484FG Fog Gray, 86484T Teal, 86484SB Slate Blue, 86484P Plum, 86484BG Blue Gray, 86484GN Green, 86884BN Brown Optional chair dolly (Cortech DY9000, sold separately) About Cortech USA by Correctional Technologies:Cortech USA (Correctional Technologies) manufactures products that are exceptionally durable, designed for use in compassionate and normative behavioral healthcare, corrections, law enforcement, heavy use commercial and industrial environments, parks and recreation, schools, universities, hospitals, emergency and homeless shelters, and other institutions and facilities where safety and durability matter. Cortech products are ideal for extreme use and intensive use environments.