About This

【50% Thicker Bubble Cushioning】Metronic Thickness Bubble Mailers provide superior protection for your valuables. Their 1/7" ultra-thick bubble design is 50% thicker than standard versions, creating a powerful shock-absorbing barrier. These padded envelopes are ideal for shipping fragile items such as perfume, ceramics and jewellery. They significantly reduce the risk of damage caused by bumps, drops or rough handling during transit.
【Fits 4x7" Items Perfectly】Our padded mailers are specifically designed with a generous usable internal dimensions of 4.76 x 7"(outside: 4.76x8"), making them the gold-standard solution for 4x7 inch items, sports cards, trading cards, chargers and other small items. Say goodbye to items that won't fit in bubble envelopes！
【Waterproof & Durable】We never compromise on durability. Our thickened small bubble mailers are made from high-quality, tear-resistant polyethylene with a waterproof layer that protects against light moisture, dust and accidental spills. Metronic bubble packaging envelopes are ideal for packaging, shipping and mailing, ensuring your parcels arrive intact.
【Strong Self-Adhesive Seal & Tamper-Proof】Padded mailing envelopes utilize a weather-resistant adhesive that provides a reliable seal even under demanding conditions, helping to prevent tampering during transit. The poly bubble mailers self-sealing design enables effortless closure in seconds, making them ideal for e-commerce, retail boutiques, stationery stores, and beyond as a simple, hassle-free packaging solution.
【Why Choose Us】As a trusted brand specializing in shipping envelopes bubble mailer, Metronic understands that packaging protection is paramount to your needs. That's why we've introduced these newly upgraded thick bubble mailers, offering a premium solution far exceeding standard mailing envelopes. With a 50% increase in internal bubble thickness, they provide exceptional cushioning for valuable and fragile items. Additionally, their expanded 4.76×8 inch design perfectly accommodates 4×7" items, solving the common issue of size mismatches found in the market. Choose Metronic for thoughtful and professional protection for your business.