Optimize Your Stanley Tumbler Experience: Upgrade your Stanley 30 & 40 oz tumblers with this pair of adorable Butterfly Straw Covers. Specifically designed for straws with a 10 mm diameter, check your straw's size to ensure a perfect fit.

What's Included: Each set contains two straw covers in various colors—ideal for personal use or sharing with friends and family. Kids and adults alike will love these charming additions to their drinkware!

Premium Construction: Crafted from soft, durable, and environmentally friendly materials, these BPA-free straw covers guard your health and are built to last.

User-Friendly: Easy to attach and remove, these covers keep your straw clean and free from dust and spills, enhancing hygiene and convenience.

Versatile Use: Dirt and splash-proof, making them suitable for various activities like camping, hiking, or casual strolls. They are lightweight and portable, adding a practical touch to your outdoor gear.

Cute & Practical: These reusable straw caps are not only cute but also serve as a practical addition to your Stanley cup accessories, ensuring your drinking experience is clean and stylish.