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Throw away those old, gunked up rubber rings on your stainless steel tumbler and replace it with a new seal! This o-ring fits most major brands of tumblers such as Yeti, RTIC, Rooster6, Ozark Trail, and SIC. Simply pull off the old ring then stretch the new ring in its place and let it seat in the groove for a perfect seal. Each package contains two new seals. Lid sold separately. Due to variations in tumbler lids our seal may fit slightly differently than your original seal. These seals do not fit brands such as Thermos, Big Bubba, Contigo, Kleen Kanteen, or Hydroflask.