3 and 5 Gallon Water Jug Cap: you'll get 30 Pieces blue non spill water bottle caps, inner caps design turn the non-spill caps into reusable and replacement, refill your water jug for recycling use and saving money. Material: Our non-spill lids for water dispenser are made from high quality plastic. The water bottle Caps with peel-off dust protection seal. Non-adhesive, mainly compatible with bottle water coolers. Three-Piece Suit: Upgrade Non-Spill Plug system, no splash, no leak, sealing strong than universal caps, clean and safe to create a sterile environment for crystal-clear water storage. Outer protection non-splash caps for dust - proof. Great Replacement: Water bottle snap on cap applicable to 55 mm 2,3 or 5-gallon water bottles, recycling use and saving your money. Perfect for snap top bottles, not for use with screw top bottle. Multiple Occasion: The center button stays attached to the cap once it's placed, instead of floating around in the water also for water jug on top rack or with water pump in both family and office. colour: blue Material: plastic Package Contents: 30 x water jug Cap Only the above package content, other products are not included. 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.