30 oz. Tumbler Lid- Fits Yeti Rambler and Rtic Tumbler Stainless Steel - Straw Friendly Splash Proof Slider Closer- Great Replacement lid Accessory high quality-made with the top food grade crystal clear plastic that's BPA free Heavy duty- light weight and fits great on yeti rambler along with any of the other similarly sized tumblers Reduce splashing, has designated air holes on top of slider for airflow ergonomics which helps in reducing splashing along with a secure O-ring easy- sliding open and shut closer that is straw friendly, great for on the go safe- it's eco-friendly, non-toxic materials, BPA free and dishwasher safe