· PREMIUM MATERIAL:30 OZ Replacement Lid is Made of crystal clear plastic, lid can be in touch with the drinks directly.Easy to clean, dishwasher safe.These premium spill proof lids also designed to be a straw stainless steel straight straw and bent straws· EASY TO OPEN AND CLOSE : 30 OZ Replacement tumber lids flip-top mechanism allows open and close the slid tag easily which also can keep your drink insulated longer.Designed with an air hole on top of slider according to airflow ergonomics,Easy to clean· SPILL-PROOF: Spill proof tumbler lid designed with a unique vacuum sealed technology that's airtight keeps your drink insulated longer; No more worry about spill especially when carry a hot beverage in the bag or driving· Compatibility - The 30 oz replacement lid is suitable for a 3.7 inch inner diameter tumbler.Like Yeti rambler, Ozark,Boss,Atlin,SUNWILL,Umite Chef,Mossy Oak,ALBOR, not compatible with Coleman, BUILT and 30 oz skinny glasses· Wide Application-Whether your original tumbler lid is damaged or misplaced, our set of 2 replacement lids is perfect for daily use or as backups. They are designed to provide great convenience for your travels, daily life, and work