Featuring a convenient flip top mechanism, these caps allow for quick and easy access to the vial's contents without compromising the seal. This design is particularly useful in settings where frequent required, such as in laboratory experiments or when dispensing medications. The caps are compatible with standard glass vials, allowing versatility in use. Features Suitable bottle outer diameter: 1.3cm -Color:Blue -Material:Aluminum plastic composite -Size:1.40X1.40X0.70cm/0.55X0.55X0.28in -Convenient flip mechanism: the fliptop cap features a simple flip mechanism for quick and easy vial sealing -Effective sealing: crafted from aluminum plastic composite, these flip-up vial caps provide an effective seal, preventing any liquid leakage -Great sealing: these plastic aluminum caps prevent air from entering the vial, allowing the product inside remains fresh -Multiindustry use: suitable for glass bottle caps, these vial replacement covers are widely applicable in cosmetics, pharmaceuticals, and food industries -Sturdy: allows the safety of the sealed plastic aluminum covers with its and construction Package list: 400 vial seals