30 Pieces Blue Non-Spill Water Bottle Caps: Inner caps design turns non-spill caps into reusable replacements. Ideal for refilling and recycling water jugs to support sustainable use. Safety Material: Made from high-quality plastic. Each cap includes a peel-off dust protection seal. Non-adhesive design, compatible with standard water bottle coolers. Three-Piece Design: Upgraded non-spill plug system prevents splashing and leaking. Provides stronger sealing than universal caps. Ensures clean and safe storage for clear water. Outer protective cap offers dust-proof protection. Great Replacement: Snap-on caps fit 55 mm openings on 3 or 5-gallon water bottles. Suitable for snap-top bottles. Not compatible with screw-top bottles. Multiple Uses: Center button remains attached to the cap after placement, preventing loose parts and contamination. Ideal for water jugs used with top racks or water pumps in home or office settings. Color: Blue Material: Plastic Package Includes: 30 x Water Jug Caps Note: Light shooting and different displays may cause slight color variations between the image and actual item. Measurement error allowed is +/- 1-3 cm.