Star Silicone Straw Cover for Stanley 30 & 40 Oz Tumbler | 10mm

Dress Up Your Stanley Tumbler with Adorable Star Straw Covers

Add a fun, playful touch to your favourite Stanley 30 or 40 oz tumbler with these charming star-shaped silicone straw covers. Available in a variety of colours — Pink, White, Blue, and Yellow — these cute straw toppers let you switch up your style, match your mood, or simply keep your straw hygienic and dust-free wherever you go. Made in Mainland China.

Why You'll Love These Straw Covers

• Perfect Fit for Stanley Tumblers: Precisely sized at 10mm (0.4 in), these straw covers are fully compatible with Stanley 30 oz and 40 oz tumbler straws. They sit snugly in place and won't easily fall off during use.
• Adorable Star Design: The charming star shape and range of bright colours make your cup look cuter and more personalised — a small upgrade that makes a big visual difference.
• Food-Grade Silicone Material: Crafted from high-quality, BPA-free, odourless food-grade silicone, these straw toppers are completely safe for everyday use. No unpleasant smells, no nasty chemicals.
• Easy to Clean & Reusable: Suitable for both hand washing and machine washing, these covers are built to last. Simply rinse and reuse — a sustainable, eco-friendly alternative to disposable straw covers.
• Stay-Put Design: Even when you open the cover, it can be kept hanging on the side of the straw so you never misplace it. No more lost caps!
• Dustproof & Hygienic: Effectively seals the top of your straw to keep it clean between sips — ideal for outdoor activities, walks, picnics, and camping trips.
• Compact & Portable: Lightweight and small enough to tuck into any bag or pocket, making them the perfect everyday carry accessory.

Product Specifications

• Material: Food-Grade Silicone (BPA-Free)
• Compatible Straw Size: 10mm (0.4 in)
• Compatible With: Stanley 30 oz & 40 oz Tumblers
• Available Colours: Pink, White, Blue, Yellow
• Package Includes: 1 × Star Shape Straw Cover (straws and cups not included)

Important Notes

• Actual colour may vary slightly from product images due to monitor display and lighting differences.
• Please allow a small measurement tolerance as dimensions are measured manually.

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Learn more: FDA food safety in the kitchen

Frequently Asked Questions

Q: Are these silicone straw covers compatible with all Stanley tumbler sizes?

A: These star-shaped silicone straw covers are specifically designed to fit 10mm straws, making them perfectly compatible with Stanley 30 oz and 40 oz tumblers. Please check your straw diameter before purchasing to ensure the best fit.

Q: Are the straw covers safe to use with drinks?

A: Yes! These straw covers are made from food-grade, BPA-free silicone that is odourless and free from high-concern chemicals, making them completely safe for use with all types of beverages every day.

Q: How do I clean the straw covers?

A: These reusable silicone straw covers are easy to clean — simply hand wash them with warm soapy water or place them in the dishwasher/washing machine for a thorough clean. They are fully reusable and built for long-lasting everyday use.

Q: Will the cover fall off the straw during use?

A: No. The covers are precisely sized at 10mm to fit snugly onto compatible straws. Even when opened, the cover can be hung on the side of the straw so it stays attached and is ready to use whenever you need it.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.