Silicone Spill-Proof Stoppers for Stanley Quencher H2.0 & 1.0 Tumblers

A Breakdown That Highlights Everything

Premium Food-Grade Silicone Stopper: Made from high-quality silicone rubber, these spill-proof stoppers are both safe and reusable. The premium food-grade silicone ensures a premium and safe drinking experience. You can enjoy peace of mind knowing that your health is always a top priority.

Fit: This silicone spill-proof stopper is designed to fit perfectly on a 40 oz Stanley cup or a 30 oz tumbler with a handle. Precisely engineered to match the exact dimensions, it provides a snug and secure fit.

Spill-Proof: Installed in the straw hole of the lid, it not only forms a seal but also holds the straw, preventing debris and dust from entering through the straw. This design significantly reduces spills, providing a better leak-resistant solution for Stanley cups and tumblers.

Straw-Friendly: Each stopper includes 4 straw cover caps, 4 square spill stoppers, and 4 round leak stoppers. Compatible with straws less than 0.39" / 10mm in diameter, these stoppers ensure more convenient drinking.

Easy to Install: Our design for Stanley 40/30 oz tumbler spill stoppers is incredibly user-friendly. Simply insert and press down firmly to secure it. Whether you're traveling or using it in daily life, the Stanley tumbler accessory will keep your drinks inside the cup and prevent mess.

Patent Pending: Our Stanley cups come in two versions—Silicone Spill Proof Stopper 1.0 and 2.0. Whether you have version 1.0 or 2.0 Stanley cups, these two-pack accessories ensure a snug and secure fit.