Description
Product Overview
Metronic black bubble mailers are designed for secure and efficient shipping of small items. These 4×8 inch padded envelopes feature a self-seal closure and are constructed from durable, tear-resistant polyethylene. With an inner size of 4×7 inches and a weight of 0.2 ounces per mailer, they provide optimal protection for cards, keychains, and lightweight documents. The mailers include 80gsm bubble lining with air cellular layers to absorb shock during transit, ensuring your items arrive safely.

Usage
These bubble mailers are ideal for e-commerce businesses, office environments, and individual shippers who need reliable packaging for small, fragile items. Use them for shipping trading cards, jewelry, electronic accessories, or important documents. They are suitable for postal services, courier deliveries, and storage of sensitive materials, offering a practical solution for both commercial and personal shipping needs.
Why Choose Us
Metronic bubble mailers stand out due to their high-quality materials and thoughtful design. The polyethylene construction is not only puncture-proof but also waterproof, protecting contents from rain and handling damage. The self-adhesive seal eliminates the need for additional tape, saving time and reducing waste. With a 4.8-star rating from over 12,000 reviews, these mailers are trusted for their consistency and reliability in various shipping scenarios.
Key Features
- Self-seal closure for quick and secure packaging without tape
- Waterproof polyethylene material to safeguard against moisture
- Puncture-resistant and tear-proof design for durable shipping
- 80gsm bubble lining with air cellular layers to absorb impacts
- Lightweight and economical, reducing overall shipping costs
FAQ
What is the inner size of the 4×8 inch bubble mailer?
The inner dimensions are 4×7 inches, providing a snug fit for items like cards or small accessories.
Are these mailers reusable?
While designed for single use due to the self-seal adhesive, they can be carefully reopened if needed, though resealing may not be as effective.
Can they be used for international shipping?
Yes, these mailers meet standard shipping requirements and are suitable for domestic and international postal services.
How many mailers come in a pack?
Pack sizes vary; for example, the 4×8 inch option is available in 50, 800, or other quantities depending on the SKU selected.
Do they protect against crushing?
Yes, the bubble lining and sturdy material help cushion items, reducing the risk of damage from impacts during transit.





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