These flip top caps are designed to provide a secure seal for glass vials, ensuring the contents remain fresh. Made of plastic and aluminum, they offer a great closure solution for laboratory and pharmaceutical applications. The flip top design allows for easy access while maintaining the integrity of the vial's contents. Features Suitable bottle outer diameter: 1.3cm -Color:Blue -Material:Aluminum plastic composite -Size:1.40X1.40X0.70cm/0.55X0.55X0.28in -Fliptop design: the fliptop cap features a convenient design, allowing for easy and quick sealing of vials with a simple flip -Aluminum plastic composite: made of aluminum plastic composite material, these flips top caps effectively seal vials, preventing liquid leakage -Airtight seal: these caps prevent air from entering the vial, maintaining the freshness of the product inside -Versatile application: suitable for glass bottle caps, these fliptop caps are widely used in cosmetics, pharmaceuticals, and food industries, meeting diverse needs -Robust: ensures durability and safety with its robust construction, making it a dependable choice for various applications Package list: 200 vial seals