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21 x 30 cm - #2 Silver Bubble Envelopes

PRONTO

Color: Silver / Metallized Polyester Film

Variant

Price:

$32.23

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About this Product

SPECS

Dimensions: 21 x 30 cm
Length: 21 cm
Height: 30 cm
Opening: 14 cm
Material: Metallized Polyester Film
Closure Type: Self-adhesive Flap
Adhesive Type: Hot Melt
Adhesive Activation: By Pressure
Bubble Size: 5 mm
Model: #2
Color: Silver
Units: 100 Envelopes
Water Resistance: Yes

DESCRIPTION
The 21 x 30 cm silver bubble mailers are designed to provide secure and reliable protection for your shipments. Made from metallized polyester film, they offer excellent tensile strength, tear resistance, and moisture protection. Featuring a 5 mm bubble interior for superior cushioning, these mailers ensure your items remain safe during transit. The permanent self-adhesive closure guarantees a strong, tamper-resistant seal. Perfect for shipping delicate items, electronics, documents, and more, whether for business or personal use.

HOW TO USE

Select an envelope that fits your product, leaving space to seal securely.
Insert the item into the envelope, ensuring it is centered and cushioned.
Peel off the adhesive strip and press firmly to close.
Label the package with the recipient’s details and send via your courier.

About Our Products

How do I know what box size is perfect for my product?

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.

Can I make a box with the exact measurements I need?

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.

Do you have eco-friendly products?

Yes, we're constantly adding more sustainable options. Visit our Eco-Friendly Packaging Collection to see environmentally friendly boxes and materials.

What is the difference between bubble envelopes and rigid envelopes?

• 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.

What is the difference between regular kraft boxes and white boxes in terms of strength?

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.

Fast Turnaround

Digital proofs in 48 hours, production in 5–7 days — so you never have to wait long.

One-Stop Shop

Bags, boxes, tape, and labels — everything you need, all in one checkout.

Eco-Friendly Choices

Up to 70% PCR films, biodegradable fillers, and recyclable packaging options.

Real Savings

Peso pricing, tiered volume discounts, and free shipping above threshold.