Tight-fitting, overlapping lid to help contain odors. Quiet, heavy-duty pedal for hands-free sanitary use. Tough, puncture-resistant, all-plastic construction. Assists in complying with OSHA regulation; 29 CFR 1910.1030 "Occupational Exposure to Bloodborne Pathogens." Factory Mutual (FM) and California State Fire Marshal (CSFM) approved for fire safety. Optional rigid liners provide a leak-proof base to help contain liquids.