The 12.6 oz Newport CamLid® Disposable Tumbler Lid (CLNT12190) turns your reusable Cambro tumblers, mugs and small bowls into spill-free containers perfect for children at restaurants, elderly patients in nursing homes and everyone in between. When a cover is necessary, this Cambro lid provides a green alternative by eliminating the need for a disposable container. Simply take your Cambro reusable tumblers and place the lid on top. These polystyrene lids are stackable for easy storage. They are made in the USA.