Use the Cambro 1218SCCW135 Clear Sliding Lid to reduce risk of cross contamination. The lid slides open for easy access to contents without removing from box. It snaps tight and won"t come off during transportation. The top molded-in rails make for for safer, more secure stacking. Made of crystal clear, virtually unbreakable Camwear polycarbonate and withstands temperatures from -40°F to 210°F (-40°C - 99°C). NSF. This product measures at 12 inches long by 18 inches wide.