【Compatibility】Designed specifically for YETI Rambler 20 oz Travel Mugs.Stronghold lids are threaded to fit 20 oz YETI Travel Mugs with threads only (does not fit any other press-in 20 oz Tumblers) 【Spill-Proof】20oz Stronghold lid use a new dual slider screw-in design (not magnetic lid), preventing beverage splashes and easily handling rough roads and sharp turns 【Safety First】Made from BPA-free food-grade crystal clear Tritan material, ensures that the taste of your drink will not be affected, you can drink it with peace of mind. Strong impact resistance, not easy to break even when dropped 【Easy To Clean】No more coffee stains hassle! Simply rotate the slider on the back 90° to effortlessly detach the lid. Say goodbye to hard-to-clean crevices and reduce the time spent scrubbing by the sink 【Straw Friendly】Choose the way you like to drink! The drinking spout accommodates a 0.31-inch/8mm straw, so whether you prefer to use a straw or just sip, it's ideal for your needs Bluwing 20 oz Screw Top Lid Replacement for YETI 20 oz Travel Mug with Threads Only, Stronghold Lid Replacement Spill Proof for YETI Threaded Travel Mug. Designed specifically for YETI Rambler 20oz travel mugs, this lid is made from BPA-free Tritan clear material, ensures that the taste of your drink will not be affected, you can drink it with peace of mind. Strong impact resistance, not easy to break even when dropped. Spill-proof dual-slider screw design, innovative dual-slider screw-in lid (not magnetic) beats traditional lids with better spill protection can prevent splashes, keeping your drinks secure on the go. Innovative dual-slider screw-on design (non-magnetic lid) goes beyond traditional lids with enhanced spill protection to prevent liquid splashes. The drinking spout has a capacity of 8mm straws, making it easy to sip or use with a straw. Cleaning is as simple as turning the slider on the back 90° to remove the lid for a thorough cleaning. Whether you're commuting, camping or working, this lid provides a reliable spill-proof solution for your YETI travel mug with thread