Advanced Leak-Proof Technology: Constructed from superior materials, these caps provide robust double leak-proof protection for 5-100ml glass ampoules and vials. They effectively block moisture and contaminants, prolonging the shelf life of sensitive liquids, reducing waste, and maintaining the integrity of your contents. Color-Coded Efficiency: Choose from 8 vibrant colors (, white, orange, blue, red, yellow, green, black) to visually manage and organize your vials. This color coding aids in quick identification by date, ingredient, or priority, enhancing safety and efficiency in labs, medical settings, or studios. Versatile Compatibility: These caps are designed to fit 5-100ml ampoules and vials, making them ideal for a variety of uses. Whether it's for laboratory samples, medical dispensing, DIY crafts, or even in your home medicine cabinet, these caps meet diverse needs by ensuring your contents are securely stored. and Reusable: Made from high-quality, chemically materials, these caps can endure high temperatures and repeated use. They resist aging and deformation, maintaining excellent sealing and hygienic conditions over time, making them a sustainable choice for frequent usage scenarios. User-Friendly Design: Engineered for ease of use, these caps can be securely installed with a single button and opened with one hand. They are easy to clean and air-dry, simplifying maintenance and saving both time and effort, ideal for environments where time is of the essence and cleanliness is .