5PCS 55mm 3 and 5 Gallon Non-Spill Caps,Replacement Water Bottle Snap On Cap Anti Splash Peel 5 Piece Applicable to 18.9 litres of water bucket, Inner caps design turn the non-spill caps into reusable and replacement; say no to lots of disposable water caps Not for use with screw top bottle, Please check product images to see the bottle these will fit,corrosion preventive. No splash, not easily deform,clean and durable.Save money by using MagicFour non-spill bottle caps. White inner inset, air-tight foam, dust-cover could be taken off as you need. Sealing strong, seal ensures sterile environment & protection against spillage.Refill your water jug for recycling use and saving your money.