PATIKIL 20mm Flip Off Caps, 200 Pcs Flip Off Caps Flip Off Seals Flip Off Vial Seals Plastic Aluminum Caps Cover for Glass Vial, Black

These vial caps are well constructed. They do a good job of withstanding high temperatures. It’s good to have a wide variety of color options for my vials so I can keep track of things. There aren’t any burrs. The purple vial lids in particular look great and are a hard to find color.

The PATIKIL 20mm Flip-Off Caps are a reliable and efficient solution for sealing glass vials. With a pack of 200 pieces, these caps offer excellent value for various laboratory, medical, or personal uses.**Quality and Design:**These flip-off caps are well-made with a combination of plastic and aluminum, providing a secure and airtight seal for glass vials. The green color adds a professional and clean appearance, making it easy to identify sealed vials at a glance.**Performance:**I've found these caps to be very effective in maintaining the integrity of the vial contents. They are easy to apply and remove, ensuring a tight seal that prevents contamination and spillage. This is particularly important for applications requiring sterile conditions, such as mycology, pharmaceuticals, or any scientific research.**Usability:**The caps fit 20mm vials perfectly, and their flip-off design makes accessing the vial contents convenient without compromising the seal. The quantity in the pack ensures that I have plenty of caps on hand for multiple projects, reducing the need for frequent reordering.Overall, I’m very satisfied with the PATIKIL 20mm Flip-Off Caps. They deliver on quality, reliability, and ease of use, making them an excellent choice for anyone needing secure and professional vial sealing solutions. Highly recommended for both laboratory and personal use.