PERFECT REPLACEMENT-This magnetic cup lid fits well with Yeti 20 oz Tumbler, 16 oz Pints, 10/24 oz Mug, 10 oz Lowball, Ozark Trail, old style Rtic and other brand tumblers of the same size. (Please note: This lid is not compatible with Rambler bottles/jugs, or travel mugs with the stronghold lid.) SPILL-PROOF AND INSULATION-Black silicone o-ring tightly the cup to prevent leakage. Thick lid makes the beverage more insulated, cooler or warmer for the most of the day. It prevents spills but not meant can be stored in bag,it's great to seal from splashes if you have it in your car. STYLISH AND PRACTICAL DESIGN-The tumbler replacement lid features a sturdy double-sealed design and two strong magnets for smooth and secure opening and closing. Will not touch the nose when drinking. Slider can be removed, easy to wash. SAFE TO USE-Made of high-quality, shatter-resistant, and BPA-free material.Even repeated use for years,it still stay crystal clear. EASY TO CLEAN-Magnets makes for easy cleaning - pop the MagSlider off, rinse, dry, and return it to the Lid. Our replacement mug lid are cost-effective and function just as the original did. Plus,You can be sure to use the dishwasher to clean but avoid using in microwave. This durable tumbler lid is a perfect replacement for your Yeti tumbler. Featuring a magnetic slider switch, it keeps your drinks securely sealed to prevent spills. The lid snaps tightly onto your tumbler for on-the-go convenience whether you're commuting, hiking or enjoying activities outdoors. Its leakproof design keeps messes contained wherever your day takes you. Made of BPA-free, food-grade material, it ensures your drinks stay fresh without worrying about harmful chemicals. An essential accessory for any tumbler collection, this lid extends the lifespan of your cups and helps you enjoy drinks safely during everyday use.