【Compatibility】The tumbler lid fits well with 30 oz tumblers. Please check the model number of your cup before purchasing. 【Material Safety】Our replacement cup lids are made of high quality ABS plastic, BPA free, food grade rubber ring, can effectively seal to prevent splashing, more peace of mind when using. 【Magnetic Slider Design】 The magnetic slider makes the switch smoother and can be completely removed for easier cleaning, leaving no hygienic dead ends. 【Utility】The Pinsit 30 oz. lid can be used for stainless steel cups filled with water, juice, milk, and beverages. Transparent cup lids can be seen without opening to see the remainder of the drink. Dishwasher safe, but be careful not to use it in the microwave. 【Satisfactory Service】Percute is committed to providing quality products and good service, if you have any questions please feel free to contact us. 30 oz Tumbler Lids for Yeti, 2 Pack Replacement Lids Compatible for YETI 30 oz Tumbler, 14 oz Mug and 35 oz Straw Mug, Magnetic Slider Switch Spill Proof Tumbler Cover, BPA Free