Usage Tips:[Please Note] - Our products is only fit for Stanley Quick FLIP GO 24oz 36oz Water Bottle. It does not fit any other brands and sizes of water bottles. Please make sure your water bottle model before purchase. [Effectively Prevent Leakage] - Our products are designed to protect your water bottle from leaking or getting dirty. Using our replacement stoppers and replacement gaskets can bring you a good using experience. [Package Includes] 6Pcs replacement stoppers& 6Pcs replacement seals(Bottle not included). The quantity is sufficient to meet your usual replacement needs by yourself or to share with your friends. - The replacement stoppers and replacement gaskets are made of silicone material, safe. Hand washable or dishwasher safe, suitable for daily use. Colour:Black Material:Silicone Package Contents: 6 * silicone stoppers 6 * sealing gaskets 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.