Package includes:4 pcs tumbler Replacement Lids, inner diameter of 2.64 inches, suitable for 20 oz thin glasses (please measure the diameter of the mouth of the glass before purchase to ensure that it is not suitable). Safe and reliable: Our tumbling covers are made of food-grade clear AS, high transparency, no BPA or other unhealthy materials, environmentally friendly, non-toxic, durable and safe to use in your water glasses and dishwasher Perfect fit: Travel cup replacement lid sealing good, can effectively isolate the contact between air and drink, make your drink warm and cold for a longer time, also make drink or water is not easy to spill out of the cup. Easy to use: This replaceable glass lid is designed with sliding buttons, which can be closed or opened with one hand. The design is light, practical and easy to carry, making it a good choice. Practical FUNCTIONS: can be used with stainless steel cup, can be filled with water, wine, juice, milk, tea or other drinks, can be covered on the cup, so that the dust away from the cup, enjoy the delicious drink