FOOD GRADE SILICONE: The straw caps are made of BPA free, nontoxic, and odorless silicone pvc material. SUITABLE FOR STANLEY TUMBLERS: These caps are 10mm in size which fits both the Stanley 30oz and 40z tumbler straws. KEEPS DRINKS CLEAN: The straw cap fits securely on 10mm sized straws and covers your drink and prevents leaking. EASY TO CLEAN: Can be hand washed or washed in the dishwasher. CUTE & FUN: 25 different straw caps so you can celebrate each holiday and season in style. Celebrate Every Sip – All Year Long!

NEW! The Year-Round Holiday Straw Cap Set

Swap your Stanley straw caps to match every celebration — from Valentine’s Day, Halloween and yes…even your birthday! Perfectly designed to fit Stanley and other 10mm straw tumblers, these adorable straw toppers add personality to your drink while keeping your straw clean. This set includes 25 unique caps for every holiday and moment and makes the perfect gift or treat-yourself pick-me-up.