BAYZI 2 Piece New Spill Proof Lid for Yeti, Rtic and Other Tumblers, No Leak and Splash Proof Replacement Tumbler Cup Lids, Locking Closure, 20/10 oz. 100% vacuum sealed construction, liquids are kept in and unwanted bacteria out, insulating your drinks for longer and more effectively than ever Their universal design makes these BAYZI lids compatible with BAYZI, yeti, rtic, sic, Ozark, epic and more For your added convenience, BAYZI brings you 2 rambler lids in 1 package for his, hers, or multiple tumblers in various locations Easy-open, straw-friendly design with sip hole 1-year guarantee