Applicable to 5 gallon water bottle, Inner caps design turn the non-spill caps into reusable and replacement; say no to lots of disposable water caps<br> Not for use with screw top bottle, Please check product images to see the bottle these will fit, preventive.<br> No splash, not easily deform,clean and<br> Sealing strong, seal ensures sterile environment & protection against spillage.Refill your water jug for recycling use.<br> Fit for use in: suitable for most water and beverage containers, water dispenser, and more; Also fit for water bottles on top rack or with water bump in home and offices<br> Blue loop and white inner lids for no splash and no leak use. Outer protection non-splash caps for dust-proof and clean use.<br> and reusable:<br> keep in shape for several uses; Inner caps design turn the caps into reusable and replacement. Reduce to use disposable water caps, saving resources and money.<br> Snap on caps:<br> Easy to put on and .<br> colour:blue<br> Material:plastic<br> size:Diameter: 5.5cm<br> Height: 3.7cm<br> Package Contents:<br> 30 x Bottle caps<br> Note:<br> Replacement bottle caps are for 3 or 5-gallon 55 mm, fit snap top bottles, but not for use with screw top bottles, please to see the bottle these will fit.<br> Only the above package content, other products are not included.<br> Note: Light 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.