Injection molded in one-piece of high density polyethylene. These smooth, non-porous, resilient containers can't snag, tear or damage parts or personnel. Constant wall thickness assures maximum strength at all load bearing points. These tote pans are easily cleaned and are unaffected by hot water, steam and most acids; commercial cleaning solutions may be used. Molded in bottom grooves and built-in handles, and can stack 5 high. Holds up to 50 lbs. Available in your choice colors. Meets FDA standards.