The lightweight 8100 Poly Shell series is ideal for environments such as cafeterias and lounges.It features a onepiece seat and backrest made from a highdensity, injectionmolded, colorimpregnated polypropylene shell.The 17gauge squaretubed frame has six stack bumpers to protect the chromeplated finish and extended shields to prevent the user from any undesired snags or pinches.Under the seat are three crossbraces for added support and strength and can be stacked up to 12 chairs high.