Suitable for 9~10mm Straws: These straw toppers are perfectly for Stanley 30&40 oz tumbler straws and 9-10mm diameter glass and stainless steel straws. Please note that straws are not included in the package Silicone Material:These cute butterfly straw cover are made of food grade silicone material, reusable, durable, hand washable and dishwasher friendly，easy and convenient to use and clean " Easy to Use: These colorful flowers straw caps can be directly fixed to the straw and are not easy to fall off，straw cover seals your straw，It can prevent the straw from being contaminated by dust in the air and maintain the hygiene of the straw，can feel free to use christmas straw toppers cap" Versatile and Fun: This 9-piece spring straw topper set has a cute design and is both a decorative and practical accessory for your Stanley Cups and other small cups Creative Gifts: Share these stylish Stanley Cup straw covers with loved ones and make them a great choice for family or party gifts to add a delightful atmosphere to festive celebrations

1.These straw lids are dust-proof, sealed and splash-proof, especially suitable for outdoor activities;

2.When you need to leave your drink for a while, these products can protect your drink well and keep them clean.

3.Wide match: silicone straw covers are heat resistant, can withstand the temperature from -40 - 480 degree Fahrenheit (-40 - 230 Degree Celsius);

4.They are suitable for straws with a diameter between 7 mm and 8 mm, fit your straw cup, stainless steel straws, etc.

5.These straw tips covers are perfect for decorating your straw cup. Anti-dust and splash proof, especially for outdoor activity.