Compatibility: Fits most plastic water bottles and stainless steel water bottles. Perfect Accessories: This replacement lid cap is designed for water bottles that can replace the flavor cartridge refills. It seals the water bottle when there is no cartridge on top, preventing dust and debris from entering the bottle. Strong Seals: Our bottle caps are made of durable BPA Free plastic, not silicone material. They prevent water leak-proof and keep the area around the bottle dry. Thread Design: This keeper caps for water bottlee features a non-slip thread design, making it easy to clean and install. Package: 2 pcs bottle caps for convenient alternate use when cleaning. Are you bothered by the fact that when you don't use this flavor refills, this water bottle doesn't get sealed, thus allowing dust and debris to enter this bottle? If yes, then this SUNMON replacement lid cap for water bottle is the best choice for you. Why Choose Our Lid Cap? 1. Good sealing: Stay away from dust and debris. 2. Anti-slip texture: Easy to open & close, also prevents the cap from leaking water. 3. Easy to clean. Keep spout clean. 4. Resistant Plastic (Not silicone plug): can be used for a long time. 5. Widely Compatible: Compatible with lid 12oz, 22oz, 32oz, 42oz, 62oz plastic and stainless steel water bottles. Specification: Color: white Quantity: 2pcs