Best set of 2 tumbler lids that are splash proof resistant, works great with 30oz tumblers and can be used with straws and insulated tumblers to help you enjoy your beverage Great set of tumbler lids perfect for 30oz tumblers These Magoi tumbler lids are great for insulated tumblers It has a custom drinkhole for easy access when you're using the tumbler with straw They are BPA FREE and crystal clear Great with acrylic tumblers