Features1Unique Design: With a 3 layer leakproof design, the silicone stopper provides an improved leakproof solution for your cup, so you no longer have to worry about leaks. 2Practicality: Installed in the straw hole of the lid, it not only forms a sealing effect, but also can fix the straw. It is a nice helper in daily life. 3What You will Yeceive: The leak proof accessory set includes 2 straw caps,2 square leakproof plugs, and 2 round leakproof plugs that can be easily inserted into your cup water bottle for easy use. 4Effective Sealing: Whether it is for travel, outdoor activities or daily life use, you do not need to worry about water or drink spills in the cup. 5Suitable Companin: Reusable leakproof sets are a suitable companion for cups that you can use yourself or give to your own family or friends.SpecificationItem Type:SiliconeSpillProofStopperMaterial: SiliconeforPackage List6 x Spill Proof Stopper Parts