40PCS 3ml Vial Caps, Silicone Protective Caps for 1ml 2ml 3ml Glass Vials, Peptide Storage Protective Cap, Reusable Peptide Vial Caps, 3ml Vials for Injection Bottles Caps by KNOCKO
Get 40 premium silicone caps in one order.
Caps measure 13.5mm in diameter and stretch slightly to fit narrow-neck vials. (Caps only; vials not included.)
Remove the original flip-off cap, press the silicone cap on, and it's sealed.
Blocks Dust, Prevents Leaks & Evaporation
Forms a tight seal around the rubber stopper and glass rim to keep contents clean, stable, and leak-free.
Durable, Freezer-Safe & Easy to Clean
Made of BPA-free, food-grade silicone.
Rinse with water or wipe with alcohol for quick cleaning and reuse.
Widely Compatible
Perfect for 1ml–4ml glass vials, including insulin, peptide, injection, and sample vials.
Great For
People using insulin, peptides, or injectable medications
Essential oil and aromatherapy users
Lab technicians, researchers, and sample collectors
Clinics, pharmacies, and wellness practitioners
3ml vial caps 5ml vial caps 10ml vial caps protective caps for 3ml glass vials peptide vial caps
