[Perfect Fit]The silicone sealing upgrade kit is compatible with stanley h1.0 quencher tumbler lids (20/30/40 oz) [No More Leakage]The original H1.0 lid has no rubber seal, and water leakage is inevitable when the tumbler is tipped over. The sealing upgrade kit can solve this problem, no longer have to worry about spilling water into your car, paperwork or computer. [Good Seal]The seal upgrade kit includes the center shaft cover, the straw hole seal, and the straw cover. After the installation is complete, the cup will not leak even if you turn it over. [High Quality Material]The seal upgrade kit is made of food-grade silicone, odorless, BPA free, soft without burrs, easy to clean, dishwasher safe. [Easy to Install]Tool-free, easy to install, and can be removed when not needed without affecting the original lids. color: White Material: Silicone Package Contents: 6 x Silicone Spill Proof Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.