【4 Sets Of Silicone Spill Proof Stopper】Included 4* straw cover, 4* round leak stoppers, 4* trapezoid stopper. This spill stopper set only for Stanley Quencher H2.0 FlowState Tumbler 30oz & 40oz,achive All-Round 360° Anti-Spill.
【Food-Grade Silicone】These spill proof stopper kit are made of Premiumfood grade silicone, BPA free,is built to last and is heat and cold-resistant, No odour whatsoever,safe,reliable and reusable.
【Easy To Install And Clean】Transverse cutting Round seal plug installed in the middle of the inside of the lid;Straw Covers Cap suitable for 0.35"-0.4" wide straws;Square Spill Stopper installed on the inside of the suction hose position. Easy to clean,dishwasher safe.
【Easy To Carry】Thick silicone construction,100% leak-proof, press it down firmly during installing can effectively increases the solidity. stanley cup spill stopper can holds the straw in place, not only to prevent airborne contaminants from entering the water glass as well as being leak-proof. Fashion and functionality in one accessory that is easy to use whether travelling or for everyday use.
【Perfect Gift】There are 5 colors for your choice.4 sets make this stanley cup accessories perfect for replacement or gift for stanley lovers. Small gadget to solve big annoying of leak.