【Upgraded Straw Cover】This straw cap can be applied to all OZ models of Stanley Cup 1.0 and 2.0, as well as straw caps for 6-10mm straws, no longer worrying about finding a suitable straw cap!
【Square Spill Stopper】The position of the straw hole installed inside the lid not only ensures the sealing of the cup, but also serves as a fixing function.
【Round Leak Stopper】Installed in the middle of the lid to ensure sealing, the unique cross design ensures air circulation during drinking, making it easier to use.
【Anti-Slip Boot Sleeve】Perfect fit to protect the cup, avoiding unnecessary scratches and noise, extending the cup's life
【High-Quality Silicone Material】This Spill Proof Stopper Set of 4 is food grade silicone, reusable, BPA free, dishwasher safe.