Replacement lid for your X-Seal & Go range of collapsible, airtight food containers. Made from food-grade polypropylene with a silicone 'O' Ring which creates an air and -watertight seal. Please note: Colors may vary. X-Seal & Go lids are only compatible with the X-Seal & Go range of product. Features BPA-free and food grade polypropylene Molded-in grips make opening/closing simple Dishwasher safe Materials BPA-free and food grade polypropylene Silicone 'O' Ring