Self-sealing can food lids. Tight seal keeps food fresh longer. It fits most cans, glasses and small containers. To use, place suction lid on top of an open can and slightly push in the center to form a vacuum seal. To remove, just break the vacuum seal and remove.
Product size: 4" x 4"
Posted by Hildegarde Gaughan on 18th Jul 2012
Thought they would work well on both dog & cat food cans - they slide off too easily Lose suction while in the refrigerator. Will keep trying for awhile - then maybe I'll use them for teabags to hold or squeeze.