Silicone Leak-Proof Stoppers for 30/40 Oz Stanley Cup- Includes 2 Straw Covers, 2 Square, and 2 round Stoppers. Included Components 2 Round Leak Stopper, 2 Square Spill Stoppers, 2 Straw Cover Cap. 【Effortless Installation】 Experience hassle-free setup by simply inserting our stanley leak proof kit into your tumbler's lid, ensuring quick and easy leak prevention without the need for tools.
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