3Pcs Leakproof Spill Proof Stopper Set Silicone Spill Stopper for Stanley Cup 1.0 2.0 40oz/ 30oz

Label:Yes Round Leak Proof Plug:Installed in the middle of the inside of the lid for sealing, with a cross opening design to ensure that air enters when drinking water, making drinking water easy. High-Quality Silicone Material:The spill stoppers set of 3 is food grade silicone, reusable, BPA free, dishwasher safe. Straw Topper:Different from the male model products on the market, our product has threads inside the outer cover, which has better sealing performance.0.6cm-1cm straws are suitable.The straw tip cover cap prevents water from spilling out of the straw, and can stop debris and dust from entering through the straw. For version 1.0/2.0:compatible with stanley tumbler 1.0/2.0 40oz & 30oz. Square Spill Stopper Seal:Installed in the straw hole of the lid, it not only forms a seal, but also holder the straw. Packaging: 3Pcs Spill Proof Stopper Set