LK vented lettuce bags are commonly used by supermarkets and produce stores to hold fresh lettuce. Air circulates throught the vent holes to keep the letttuce fresh. The bags are made of strong and flexible low density polyethylene and have generous side gussets. Since the bags are unprinted, they can be used to store different types of produce as well. Holds head lettuce Vent holes allow air to circulate, prolonging freshness Strong and flexible low density materia Meets FDA requirements for food contact