PERFECT COMPATIBILITY: These attractive sea animal silicone straw toppers are designed to fit seamlessly on 30 and 40 oz Stanley Quencher H2.0 Tumblers with Handles and Stanley Adventure Travel Tumblers, and will also accommodate any 10mm (0.4") OD straw. They are comfortable enough and stay in place without any hassle. NOTE: Please confirm your straw size before ordering! PREMIUM FOOD SAFE MATERIAL:Our straw covers are made of top quality food grade silicone and BPA free, ensuring safety and health for everyday use. They're eco-conscious, stretchy and easy to clean - hand wash or place in the dishwasher for convenience. INNOVATIVE CUTE DESIGN: Elevate your sipping experience with our uniquely designed mini straw caps, which feature an array of delightful sea creature shapes and pastel macaron shades. From starfish to seashells, dolphins, octopus, sharks to turtles, each lid adds a touch of whimsy to your drinkware. Perfect for celebrating special occasions and spreading joy among loved ones. REDEFINING BEVERAGE PROTECTION: These portable straw toppers provide an airtight seal to preserve your beverage while also serving as a fashion accessory. They are dust and splash proof to keep straws and drinks clean. They are compact and travel-friendly, making them the ideal companion for outdoor adventures such as hiking, picnicking, and camping. THOUGHTFUL GIFT AND EASY TO USE: Our straw covers come with a strap that can be conveniently attached to the straw even when opened, preventing misplacement. They make a delightful gift idea for Halloween, Christmas, birthdays, theme parties or outdoor excursions. Make every sip fun and colorful with our silicone straw caps. Feature: You will receive 8 Pieces Reusable Drinking Straw Covers Cap In Ocean Animals Design, This Straw Toppers is for Stanley Tumblers(14oz&20oz&30oz&40oz), This silicone straw covers cap is very convenient to use,You just need to put it on your 10mm straw. They are compatible with below brands tumblers: -compatible with Stanley Quencher H2.0 14oz&20oz&30oz&40oz -compatible with Simple Modern Tumbler30oz&40oz -compatible with Beast Tumbler 30oz&40oz -compatible with Hydrapeak Voyager 40oz Stainless Steel Tumbler with Handle -compatible with Meoky 40ozoz50oz Tumbler with Handle -compatible with Yeti Tumbler Easy to wear or remove,support drop prevention design, easy to clean.After you use it,Rinse with water and air dry naturally to extend service life. Material: Food Grade Silicone Size: suitable for 8~10 mm straws Package includes: 8 x Silicone straw covers Wide applicability: These reusable 10mm straw covers cup for reusable straws are great gift for girls,women,and your families,friends,also for your children,i think they will be very happy to receive the cute shape flowers tips,They can be used in many holiday parties: birthday, Christmas day, Mother's day, Valentine's day,They will make our gathering more colorful!