30 oz Tumbler Lid Compatibility: Only fits for 30 oz cups with a mouth diameter of 3.7-3.73 inches. Such as fit for Yeti rambler, Rtic, Atlin, Arctic , ALBOR, BJPKPK, WETOWETO and other brands (Please note! The 30oz replacement lids only fit the old models, not the new ones!) . Please double check the cup size before ordering. MATERIAL SAFETY: Our 30 oz replacement tumbler lids are made of top food-grade AS plastic, BPA-free, non-toxic and non-plastic flavor, can be in direct contact with drinks. THOUGHTFUL DESIGN: The well-made tumbler replacement lids are spill and spill resistant, keeping your drink stable. No spills even when driving on a bumpy highway. The black flap folds back so it won't touch your nose when you drink. STRAW FRIENDLY: The center hole in the lid is designed for straws and fits 6-8MM straws. Remove the silicone plug for 10MM straws, suitable for smoothies, milkshakes. The tumbler lid supports a variety of drinking styles, whether you prefer to drink through a straw or just sip. EASY TO CLEAN: All parts of the replacement lid are removable, easy to clean drink residue from hard-to-reach crevices, no hidden dirt. Plus, the tumbler lid is dishwasher safe on top. Tumbler Lids for Yeti