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 — the must-have drinkware accessory designed to fit snugly into 30 oz flat-bottomed cups. Made from durable, food-safe silica gel, these plugs create a secure seal so you can toss your cup in a bag or set it in the car without worry.

Available in 5 fun color options, it's easy to match your style or coordinate with your favorite tumbler. Whether you're upgrading your own drinkware setup or looking for a practical, affordable gift, this 3-piece set delivers everyday value that's hard to beat.

Why You'll Love This Silicone Plug Set

• Spill-Proof Seal: Flexible silica gel conforms to your cup's opening for a tight, reliable fit that keeps liquids right where they belong.
• 3-Piece Set: Get three plugs in one pack — perfect for multiple cups or as backups when one goes missing.
• Food-Safe Silicone Material: Made from BPA-free silica gel that's safe for contact with beverages, both hot and cold.
• Easy to Use & Clean: Simply press in to seal, pull out to open. Rinse clean under running water or toss in the dishwasher.
• Fits 30 oz Flat-Bottomed Cups: Designed specifically for popular 30 oz tumbler and cup sizes with flat bottoms.
• 5 Color Choices: Pick the color that fits your personality and style.
• Great Gift Idea: A thoughtful, practical add-on for anyone who loves their tumblers and wants to keep them mess-free.

Product Details

• Material: Food-safe silica gel
• Set Includes: 3 silicone spill-proof plugs
• Compatible With: 30 oz flat-bottomed cups/tumblers
• Available Colors: 5 options

For more information on safe materials used in food-contact products, visit the U.S. Food & Drug Administration – Food Contact Substances.

Frequently Asked Questions

Q: What size cups are these silicone spill-proof plugs compatible with?

A: This 3-piece silicone plug set is designed to fit 30 oz flat-bottomed cups and tumblers, providing a secure, leak-resistant seal for everyday drinkware use.

Q: What material are the silicone spill-proof plugs made from?

A: The plugs are made from food-safe silica gel — a flexible, durable, and BPA-free material that is safe for use with both hot and cold beverages.

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

A: Cleaning is simple. Rinse the plugs under warm running water or place them in the dishwasher for a thorough clean. Their non-porous silicone surface resists odors and staining.

Q: How many plugs are included in the set?

A: Each order includes 3 silicone spill-proof plugs, so you have extras on hand for multiple cups or as convenient backups.