Size:These water bottle caps measure 2.20inch*5.6cm, fits most standard snap water jugs. Package contains: Set of 12 non spill caps,enough for your daily use. Application:Our replacement water bottle cap perfect for water dispenser,water cooler and beverage container,suitable for use at home and office. High quality:The anti bottle caps are made of strong and durable plastic material,refill your water bottle for recyling use. 3 Pieces design:The cap comes with blue loop and white inner lid for no spill and no leak,reduce waste and great for clean drinking water storage.