Preserve Your Liquids Efficiently: Receive a set of 12 3ml vial caps in six vibrant colors, designed to securely seal opened 3ml glass vials. These caps prevent contamination and minimize liquid waste by keeping contents clean and extending their usability. Organize with Color: This pack includes 12 peptide vial caps in 6 distinct colors, with two caps per color. Ideal for sorting vials by expiration date or importance, these brightly colored caps facilitate quick and easy identification, enhancing your organizational system. Enhanced Protection with Leakproof Design: Crafted to fit snugly, these vial caps a tight seal that protects against dust and evaporation. Reusable and , they offer a long-term solution for maintaining the integrity of your liquid contents, making them a practical investment. Hassle-Free Maintenance: Made from robust materials with smooth edges that prevent damage to vials, these caps are easy to clean. Simply rinse with water after use, ensuring they are ready for repeated applications while maintaining hygiene and safety standards. Versatile Application: Suitable for a wide range of uses including home, hospital, laboratory, and clinic settings. These 3ml vial covers are perfect for storing insulin, peptides, essential oils, and other sensitive liquids, fitting various vial types such as 1-3ml glass vials. Color: As Shown Material: plastic Package Contents: 12* bottle cap Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.