Silicone Spill Proof Stopper for Stanley The Quencher H2.0 Flowstate Tumbler

Our Stanley cups come with three stopper options: Silicone Spill Proof Stopper 1.0, Silicone Spill Proof Stopper 2.0, and a choice of size for both versions. (Patent Pending)

Crafted from Premium Food-Grade Silicone These protective silicone stoppers are not only durable but also safe and reusable. Made from premium food-grade silicone, they provide a premium and safe drinking experience, ensuring your health is always a top priority.

Precision Fit for Stanley Cups and Tumblers The Silicone Spill Proof Stoppers are precisely engineered to match the exact dimensions of your 40 oz Stanley cup or 30 oz tumbler with handle, ensuring a snug and secure fit.

Spill-Proof Protection Installed in the straw hole of the lid, the silicone stopper forms a seal, holds the straw in place, and prevents debris and dust from entering through the straw. This significantly reduces spills, providing an improved leak-resistant solution for your Stanley drinkware.

Straw-Friendly Design The Silicone Spill Proof Stopper package includes 4 Straw Cover Caps, 4 Square Spill Stoppers, and 4 Round Leak Stoppers. The Straw Cover Cap is compatible with straws less than 0.39" / 10mm in diameter, ensuring more convenient drinking with most straw types.

Easy Installation Our spill stopper accessories are incredibly easy to install on your Stanley 40/30 oz tumbler. Simply insert and press down firmly. No hassle or difficulty, whether you're traveling or using them in daily life. The Stanley tumbler accessories will keep your drinks inside the cup and your surroundings mess-free.

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