【Spill Proof】The sippy cups have detachable non-spill to help prevent messy spills.If you notice leakage, please adjust the white sealing ring in the top of the toddler cup, this can usually effectively solve the problem of water leakage. 【Safety Material】Food-grade soft silicone transition PPSU sippy cups for toddlers 6+ months! Toddler cups are gentle on gums and protect baby's tooth and mouth.And tough enough to withstand tiny tooth. 【Safety Using】Toddler cups with weighted sippy straw cup design makes the water where the end of the straw will go, allowing baby to drink water in any comfortable position. V-type learning design trains baby's oral movements while effectively preventing coughing and choking. 【Unique Design】Toddler cup holds 10oz/300ml, with colorful and cute dinosaur shape, handles allow toddlers to carry the bottle easily and make babies fall in love with drinking.Unidirectional air return hole can effectively prevent air from entering. 【Easy Clean】All parts of this baby sippy cup with straw are removable to facilitate thorough cleaning. Rinse the cup with water before use. Steam or boil for 1-2 minutes. Dishwasher safe. 1