Pesfehhy Flip Off Caps, 200PCS Burr-Free Top Caps Seals Cover Blue, 13mm

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. Material - The cover is made of good aluminum and plastic, smooth and burr-free after opening, offering a secure seal for glass vials. 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. roduct Information - You receive 200 Pcs of flip off caps for ample supply. The caps have an inside diameter of 13 mm/0.5 inch; an outer diameter of 15 mm/0.6 inch; a height of 7 mm/0.3 inch Application - The Flip Off Caps can be used in the laboratory and , with a good sealing effect and convenient storage. Suitable for oral liquid bottles, original solution bottles, essential oil bottles, freeze-dried bottles, etc.