3-Piece Silicone Spill-Proof Plug Set for 30 oz Tumblers

Keep your favorite tumbler leak-free with this 3-Piece Silicone Spill-Proof Plug Set — a simple, smart accessory designed to fit snugly into 30 oz flat-bottomed cups and tumblers. Made from premium food-grade silica gel, these plugs create a secure, tight seal so you can toss your cup in a bag, set it on your desk, or hand it to the kids without worrying about spills.

Available in 5 fun color options, these plugs are as stylish as they are functional. Whether you're upgrading your own drinkware setup or gifting a tumbler-lover in your life, this set is an effortless, affordable pick that delivers real everyday value.

Key Features

• Spill-Proof Seal: Fits securely into 30 oz flat-bottomed tumbler openings to prevent leaks and spills
• Food-Grade Silica Gel: Soft, flexible, and durable — safe for contact with your beverages
• 3-Piece Set: Get three plugs so you're always covered, even when one is in the wash
• 5 Color Options: Mix, match, or coordinate with your favorite tumbler colors
• Easy to Use: Simply press the plug into the cup opening for a snug, no-fuss fit
• Easy to Clean: Rinse under running water or toss in the dishwasher

Product Details

• Material: Food-grade silica gel
• Fits: 30 oz flat-bottomed tumblers and cups
• Quantity: 3 plugs per set
• Available Colors: 5 options

For more information on safe materials used in drinkware accessories, visit the FDA's guidance on food contact substances.

Frequently Asked Questions

Q: What size tumblers are these silicone plugs compatible with?

A: These silicone spill-proof plugs are designed specifically for 30 oz flat-bottomed cups and tumblers. The flexible silica gel material allows for a snug, secure fit in standard 30 oz tumbler openings.

Q: Are the silicone plugs safe for use with beverages?

A: Yes! The plugs are made from food-grade silica gel, which is a safe, BPA-free material approved for contact with food and beverages. They are soft, non-toxic, and durable for everyday use.

Q: How do I clean the silicone spill-proof plugs?

A: Cleaning is simple — rinse them under warm running water or place them on the top rack of your dishwasher. The durable silica gel holds up well to regular washing without warping or losing its shape.

Q: Why do I get 3 plugs in a set?

A: Having a 3-piece set means you'll always have a clean plug ready to go — one in use, one drying, and one as a backup. It's a practical value that makes the set ideal for busy households or anyone with multiple tumblers.