4 Pcs Silicone Cup Stoppers – Leak-Proof Plugs for 6-8mm Holes

About this item

• 【Tight Seal, Zero Spills】Say goodbye to messy leaks in your car or bag. Our bottle stopper is precision-engineered to create a snug, vacuum-like seal on standard tumbler lid holes (6mm-8mm diameter). Whether you're commuting, at the gym, or on a hike, this leak stopper keeps your drink securely inside – no drips, no stains, no frustration.
• 【Premium Food-Grade Silicone】Made from high-quality, BPA-free silicone – odorless, flexible, and built to last. Unlike rigid plastic plugs that crack or warp, our soft silicone stays resilient through daily use and repeated washing. Safe for hot or cold beverages (-40°F to 446°F / -40°C to 230°C). Dishwasher safe for effortless cleaning.
• 【Compatibility Check – Fits 6-8mm Round Holes】Designed as a versatile replacement plug for most tumblers, travel mugs, and straw lids with round holes between 6mm and 8mm in diameter. Works great with Stanley, Yeti, and many other popular brands. Important – This stopper is NOT compatible with Thermos Intak 24oz bottles (their lid hole size and shape differ). To ensure a perfect fit, please measure your lid's hole diameter before ordering – we want you to get the right plug for your cup.
• 【Installs in Seconds, Stays Put】Just press the stopper into the lid hole and it locks in place instantly. No twisting, no tools – one-hand operation. The stopper sits flush with the lid surface – won't interfere with closing your tumbler lid. Lightweight and compact, it's an essential travel companion for camping, office, or road trips. It also blocks dust and debris, keeping your drink fresh and hygienic wherever you go.
• 【4-Pack Value – Spares for Every Need】Each pack gives you 4 reusable stoppers – keep one in your bag, one at the office, and share with family. A cost-effective way to extend the life of your favorite tumblers and always have a backup when one gets misplaced. Order now and enjoy spill-free hydration – at your desk, in your car, or on the trail.