YouZi Spill Proof and Splash Resistant Lid for Yeti Rambler Rtic Ozark Trails Tumbler Cups 30 oz,Pack of 2 (Blue)

Features: ^-^Inner diameter 3.5inch lid fit for 30 oz tumbler   ^-^Measure the inner diameter of the lid before purchase The closure can open and close for direct sipping or for a straw. Come with a black silicone o-ring around the base, which helps cover the cup tightly. Designed with an air hole on top of slider according airflow ergonomics which helps reducing splashing. Notice: It is easy to clean and dishwasher safe, but avoid using in microwave. The air hole is designed to keep a same air pressure inside and outside the tumbler, making it convenient for you to drink water . This lid will help with accidental tips and spills but not guarantee no leaks if inverted for a long time. Package includes: 2* Tumbler Straw Lids.