Tupperware Sipper Seals, set of 4.
(4) White Tupperware domed sipper seals. Approximately 3 inches diameter, "G" size, made to fit Tupperware Bell Tumblers (both 7 oz and 10 1/2 oz sizes), will also fit straight sided 16 oz tumblers part numbers 5107 or 107, 8 oz or 12 oz TableTop tumblers, and the 10 1/2 oz size straight tumblers 6170. Sipper seals help minimize spills while the child is transitioning to drinking from a cup.
Brand new, BPA free, dishwasher safe
From a clean, pet free and smoke free environment