Are you still troubled by the leak of tumbler? If yes, we recommend this product to you. Our product is a set of silicone spill proof stopper. It is easy to install and clean. With the help of it, you do not need to worry about the tumbler leaking or dirtying clothes. And it only compatible with Stanley tumbler 1.0. Features -Color:Transparent -Material:Silicone, -Size:20.00X1.00X1.00cm/7.86X0.39X0.39in Made of food-grade silicone material, this spill proof stopper is safe, reusable and dishwasher safe. The package includes square spill stopper, round spill stopper, straw tip cover and straw cleaning brush. You can use this straw cover cap to prevent water from spilling out of the straw, and can stop debris from entering through the straw. And the equipped cleaning brush helps you clean the straw very conveniently, which is very practical. This silicone spill stopper set keeps your mug completely spill proof. And it is compatible with . Package list: 4 x Square Spill Stoppers 4 x Round Spill Stoppers 4 x Straw Covers 4 x Straw Cleaning