12Pcs Reusable Leak-Proof Vial Caps for 3ml & 5ml Glass Bottles
12Pcs Reusable Leak-Proof Vial Caps for 3ml & 5ml Glass Bottles
Keep Your Glass Vials Sealed & Secure
Say goodbye to spills and contamination! These 12-pack reusable vial caps are designed to fit snugly over your small glass vials, creating an airtight, leak-proof seal every time. Whether you're storing essential oils, perfume samples, liquid pigments, or travel toiletries, these versatile caps keep your contents fresh and your bag mess-free.
Made in Mainland China.
Key Features
- Leak-Proof Airtight Seal: Snug-fitting TPU construction forms a reliable airtight seal to prevent leaks and spills.
- Food-Grade Material: Made from food-safe TPU plastic — safe for use with essential oils, liquid samples, and food-contact applications.
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Two Size Options (3ml & 5ml):
- 3ml cap: Height 3×1 cm | Outer Ø 2.5 cm | Inner Ø 2.1 cm
- 5ml cap: Height 2×0.9 cm | Outer Ø 1.7 cm | Inner Ø 1.4 cm
- Reusable & Durable: Flexible yet resilient — these caps can be removed and reapplied repeatedly without losing their seal.
- Multicolor Pack: Fun assorted colors make it easy to identify different vials at a glance.
- Dust & Contamination Protection: Acts as a protective dust plug to keep the mouth of your vials clean between uses.
- Pack of 12: Generous quantity to cover multiple vials in your collection or kit.
- Versatile Use: Perfect for travel bottle sets, lab sample vials, essential oil vials, nail art, and more.
Specifications
| Material | TPU (Thermoplastic Polyurethane) Plastic |
| Color | Multicolor (assorted) |
| Compatible Capacity | 3ml & 5ml vials |
| Quantity | 12 pcs per pack |
| Food Grade | Yes |
| Function | Airtight, Leak-Proof, Dust Plug |
What's in the Box?
12 × Glass Vial Protective Caps (size/color assortment as selected)
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Learn more: Ready.gov emergency supply guidance
Frequently Asked Questions
Q: What vial sizes do these reusable leak-proof caps fit?
A: These vial caps are designed for small glass vials — specifically 3ml and 5ml sizes. The 3ml cap has an inner diameter of 2.1 cm, and the 5ml cap has an inner diameter of 1.4 cm. Always check your vial's rim diameter against these measurements before ordering.
Q: Are these vial caps safe for use with essential oils and food-contact liquids?
A: Yes! These caps are made from food-grade TPU plastic, which is safe for use with essential oils, liquid samples, and other food-contact applications. They contain no high-concern chemicals.
Q: Can these caps be reused multiple times?
A: Absolutely. The flexible TPU material is designed for repeated use — simply press the cap onto your vial for an airtight seal, and peel it off whenever you need access. They retain their sealing properties through many uses.
Q: Do these caps work as dust plugs when vials are in storage?
A: Yes! In addition to providing a leak-proof seal, these caps function as effective dust plugs, keeping the opening of your vials protected from dust and contaminants during storage.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.