Description
SPECS
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Dimensions: 21 x 30 cm
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Length: 21 cm
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Height: 30 cm
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Opening: 14 cm
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Material: 100% Recycled Paper (Kraft)
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Weight: 150 g/m²
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Thickness: 0.300” ≈ 7.62 mm
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Closure Type: Self-adhesive Flap
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Adhesive Type: Hot Melt
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Adhesive Activation: By Pressure
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Bubble Size: 5 mm
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Model: #2
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Color: White
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Units per Pack: 100 Envelopes
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Recyclable: Yes
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Features: Easy-open strip
 
DESCRIPTION
The 21 x 30 cm White Bubble Mailers – #2 are an excellent choice for shipping and protecting items with style and security. Made from durable recycled kraft paper, these mailers feature a 5 mm bubble lining that provides superior cushioning against shocks, impacts, and scratches. The permanent self-adhesive flap ensures a strong, tamper-resistant seal, while the easy-open strip allows convenient access for the recipient. Perfect for sending documents, photographs, books, and other small or delicate products, these eco-friendly mailers combine practicality, strength, and sustainability in one reliable package.
HOW TO USE
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Select the correct mailer size, leaving enough room to seal securely.
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Place your item inside, ensuring it is centered and protected.
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Peel off the adhesive strip and press the flap down firmly to seal.
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Clearly label the envelope with the recipient’s details and hand it to your courier.
 
About Our Products
1. Measure the product (length, width, height) with enough space for padding or protection.
2. Search our catalog for the box with suitable internal dimensions.
3. If you need advice, our Sales team can guide you.
Yes. We carry plain corrugated boxes in most categories (white, regular, and tabbed). For custom sizes, please contact us to review minimum availability and production times.
Yes, we're constantly adding more sustainable options. Visit our Eco-Friendly Packaging Collection to see environmentally friendly boxes and materials.
• Bubble Mailers: These have an inner layer of bubble wrap that protects fragile and lightweight items. Ideal for electronics or small fragile items.
• Rigid Envelopes: Made with cardboard or a hard material that prevents bending. Perfect for documents or items that don't need to be folded.
White and regular kraft boxes have the same strength if they share the same gauge (single corrugated). The choice is usually more about aesthetics or presentation. White boxes tend to give a cleaner or more premium appearance, while kraft boxes offer a natural, rustic look.
Compatible with All Major Couriers
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