16 PCS 3ml Glass Vial Caps Protective Lids Cover Reusable Silicone Cap Peptide Storage Flip Off for Fridge Leakproof Dust Resistant

【Color Distinguishing】: Includes 16 protective vial caps in 3 colors (5 black 5 white 6 gray), suitable for organizing and color coding the contents of different vials for quick identification 【Dust & Leak‑Proof】: Snug‑fitting design creates an airtight seal that locks out dust and stops liquid evaporation 【Flexible Material】: Made of premium silicone that is flexible and durable enough to pop on and off, easily without cracking or stretching out. Refrigerator‑safe 【Reusable】: Vial caps covers easy to clean, simply rinse with water after each use for quick cleaning 【Wide Compatibility and Multipurpose Use】: The 3ml vial cover can be applied to store insulin, peptides, DIY essential oils, tinctures, perfume oils, potions, and other liquids. Great for lab, medical, home, or studio use