Silicone Spill Proof Stopper Set for Stanley 30oz and 40oz Tumblers

Tired of accidental spills every time your tumbler tips over? This silicone spill proof stopper set is designed to help keep drinks where they belong—inside your cup. Made to fit Stanley 1.0 and 2.0 tumblers, it seals common leak points around the straw and lid. Soft, flexible, and easy to install, it’s a simple upgrade that adds everyday peace of mind whether you’re commuting, traveling, or relaxing at home.

Key Features

• Spill-proof silicone design helps reduce leaks and splashes

• Snug fit for straw holes and lid openings

• Flexible, food-grade silicone is safe and reusable

• Easy to install and remove for cleaning

Why Choose Our Silicone Spill Proof Stopper Set for Stanley 30oz and 40oz Tumblers

Unlike loose-fitting inserts, this tumbler spill stopper set is designed specifically for Stanley-compatible tumblers for a more secure seal. It offers better leak protection than generic caps while staying discreet and comfortable to use. Durable and washable, it’s a practical alternative to constantly wiping up spills.

Perfect For (Occasions & Uses)

• Stanley 30oz and 40oz tumblers

• Travel, commuting, and car use

• Home, office, and outdoor activities

• Anyone wanting fewer spills and leaks

How to Use

Insert the silicone stoppers into the straw hole or designated lid openings. Ensure a snug fit before use. Remove and rinse regularly to keep clean.

Product Specs

• Material: Food-grade silicone

• Compatibility: Stanley Cup 1.0 and 2.0 tumblers

• Sizes supported: 30oz and 40oz

• Function: Spill and leak prevention

Sip With Confidence Anywhere

Enjoy your favorite drinks without the mess. Experience the difference this silicone spill proof stopper set can make in your daily routine.