Package contents: you will receive 4 pieces of 20 oz replacement lids, the quantity is adequate to meet your daily use and replacement demands, and they are well packed in order to keep them from breaking during transportation Quality material: our tops for 30oz tumbler are made of ABS plastic, and the support ring is made of rubber, both materials make the lid reliable and safe to use, not easy to break or deform, and the lid without BPA can directly contact the beverage Wide compatibility: these spill proof lids for tumbler are good for 30 oz or 20 oz insulated drinking glasses, ideal gift for your drinking glasses and friends; The lid can be divided into many parts for cleaning, which is dishwasher safe Considerate design: with a straw hole design, this 30 oz tumbler lid is convenient for you to drink directly or sip from the hole with a straw; The lock can be folded back and lay flat, and it will not hit your nose when drinking, providing you with a comfortable use experience Practical function: the replacement lids can effectively keep the water splashing and a large amount of overflow when the glass is turned over, so you don't have to worry about water and beverages splashing out of the glass, keeping your bottle tidy