uxcell 20mm Flip Off Caps, 200PCS Burr-Free Flip Off Top Caps Seals Flip Off Aluminum Plastic Vial Flip Off Seals Caps Cover for Glass Vial Freeze-Dried Bottles, White/Silver

Description:Material - The cover is made of good aluminum and plastic, smooth and burr-free after opening, offering a secure seal for glass vials.Good Seal - The equipped plastic-aluminum lid ensures the tightest seal and reduces the possibility of sample evaporation. This crimp top vial provides a good seal for long-term sample storage.How to Use - To open, flip off the plastic cap and remove the aluminum seal using pliers if necessary. The flip off seal can withstand high temperatures. But this cover is fully tear-off, and when you tear off its plastic cover, the aluminum cover becomes unusable.Application - Our Flip Off Caps can be used in the laboratory and at home, with a good sealing effect and convenient storage. Suitable for oral liquid bottles, original solution bottles, essential oil bottles, freeze-dried bottles, etc.Specification:Caps Material: Aluminum, PlasticSuitable for: 20 mm/0.8 inch Glass VialInside diameter: 20 mm/0.8 inchOuter diameter: 22 mm/0.9 inchesHeight: 9 mm/0.4 inchesPackage Content: 200 x Flip Off Caps