Games Straw Cover: package included 6 pcs Game Straw Covers for stanley cup. All cover caps are 9-10 mm inner diameter for use with stanley and cup straws. Food Grade Material: The silicone straw cover caps are made of high quality food grade material, safe, non-toxic, odorless, durable and reusable. Safe materials that you can use every day with confidence. It's a must-have accessory and the perfect companion to the Stanley Cup! Easy To Use: Our stanley straw tip is designed to fit 40 oz tumblers perfectly. They protects your straw perfectly, effective Dust Protection. Easy to install and remove for hassle-free use. And they are small and easy to carry on a daily basis, especially suitable for outdoor activities. Unique Design: These straw covers have various cute shape, such as Game, Balls, Flower. Add a touch of personality to your stanley cup with cute and trendy designs, stand out with unique accessories. Wide Applications: Adorable Games Straw Toppers suitable for various occasions, including walking, camping, and hiking. This Straw Cover is a great addition to any cup straws and makes for a thoughtful gift. Stanley Straw Covers Silicone Straw Topper 0.4in Dust Proof Straw Cover Cap