Please Note: This product is compatible only with Stanley Quick FLIP GO 24oz and 36oz Water Bottles. It is not compatible with other brands or sizes. Please verify your water bottle model before purchasing. Effectively Prevents Leakage: Designed to help prevent leaks and keep your water bottle clean. These replacement stoppers and gaskets provide reliable performance and an improved user experience. Package Includes: 6 x replacement stoppers, 6 x replacement seals (bottle not included). The quantity provided meets typical replacement needs and allows for sharing. High-Quality Material: Made from high-quality silicone, these stoppers and gaskets are safe, durable, and easy to clean. Suitable for hand washing or dishwasher use. Color: Black & Gray Material: Silicone Package Contents: 6 x silicone stoppers, 6 x sealing gaskets. The package includes only the items listed above; other products are not included. Note: Due to lighting and display differences, the color in the image may vary slightly from the actual item. Measurement may vary by up to +/- 1-3 cm.