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Home / Envelopes / White Envelopes for Postal Registered Mail - Thick 140g Paper for Letter Sending and Philately (Sizes 3,5,6,7,8) Model DLZLC5B6

Attributes

Brand -
Category Stationery, Educational Electronics & Office Supplies / Envelopes
Origin -
Material 140gsm High-Quality White Paper
Available Sizes No. 3, No. 5, No. 6, No. 7, No. 8
Model Number DLZLC5B6
Color Pure White
Closure Type Self-Adhesive Strip
Recommended Use Registered Mail, Philately, Official Documents
Opacity High (Non-Transparent)
Surface Finish Smooth Matte
Package Quantity 50 Envelopes per Pack
Country of Origin Manufactured in compliance with international postal standards

6 reviews

A

Anonymous

Mar 23, 2026

Rating: 5/5

Perfect for my stamp collection

These envelopes are exactly what I needed for storing and mailing my philately items. The 140g paper is thick enough to protect delicate stamps without bending.

A

Anonymous

Mar 21, 2026

Rating: 5/5

Professional appearance

These white envelopes look crisp and clean. They make my business correspondence look much more official compared to cheaper alternatives.

A

Anonymous

Mar 16, 2026

Rating: 4/5

Great quality, slightly pricey

The build quality is excellent and they look very professional for registered mail. I deducted one star only because they are a bit more expensive than standard office envelopes.

A

Anonymous

Mar 12, 2026

Rating: 5/5

Excellent adhesive seal

The self-adhesive strip is strong and seals tightly every time. No need to lick anything, which is a huge plus for bulk mailing tasks.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Secure and sturdy

I use these for sending important legal documents via registered post. The thickness gives me peace of mind that the contents won't be damaged or seen through.

A

Anonymous

Mar 06, 2026

Rating: 4/5

Good variety of sizes

Having options from size 3 to 8 in one order was very convenient. The No. 6 size fits my standard letters perfectly. Would buy again.

5 FAQ

Q: Are these envelopes suitable for international registered mail?

A: Yes, these envelopes meet the general weight and durability standards required for international registered mail services.

Q: Can I purchase individual sizes or only the mixed pack?

A: Currently, this specific model (DLZLC5B6) is sold as a mixed pack containing sizes 3, 5, 6, 7, and 8. Individual size packs may be available under different SKUs.

Q: Are these envelopes acid-free for long-term stamp storage?

A: Yes, the paper used is acid-free and archival safe, making these envelopes an excellent choice for long-term philately storage.

Q: Is the adhesive strip reusable if I make a mistake?

A: No, the self-adhesive strip is designed for a single secure seal. Once pressed down, it cannot be reopened without damaging the envelope.

Q: Does the 140g paper prevent show-through when writing with a fountain pen?

A: Absolutely. The high opacity of the 140gsm paper ensures that ink does not bleed through or show on the other side, making it ideal for fountain pens.

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