["Ideal St Patrick's Day Accessories: The Saint Patrick's day Stanley straw cover including gnomes hat shamrock and clover straw toppers adds a great addition to st Patrick's day decorations perfect St. Patrick's day accessories" Perfect Stanley Cup Accessories: Stanley straw cover cap accurately fits Stanley 40 oz & 30 oz tumbler and can also be used for other 9-10mm straws Keep Clean & Dust-Free: The Stanley straw topper can prevent unclean stuff entering into the straw clean and sanitary making drinking more reassuring Food Grade Silicone: Made of food-grade silicone the Stanley cup straw cover are BPA-free odorless dishwasher safe the best Stanley tumbler companion Convenient & Portable: Every Stanley cup straw topper comes with a storage case easy to carry and store the St. Patrick's straw covers are also reusable]