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📬 Seal your professionalism with every send!
Postmaster C4 Envelopes are premium, peel & seal envelopes designed to fit unfolded A4 sheets securely. Featuring an opaque blue privacy lining and made from PEFC-certified sustainable 100GSM paper, these UK-manufactured envelopes combine eco-consciousness with professional-grade quality. Ideal for business or formal use, they ensure hassle-free sealing and compatibility with most printers, making them a must-have for any modern office.
| ASIN | B0CGB1PLM2 |
| Best Sellers Rank | 190 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 1 in Booklet Mailing Envelopes |
| Brand | Postmaster |
| Brand Name | Postmaster |
| Closure Type | Self-Seal |
| Closure type | Self-Seal |
| Colour | White |
| Customer Reviews | 4.6 out of 5 stars 1,268 Reviews |
| Item Dimensions L x W | 33.4L x 22.9W centimetres |
| Item Shape | Rectangular |
| Item Type Name | Envelopes |
| Manufacturer | Bong |
| Material | Paper |
| Material Type | Paper |
| Model Name | Envelopes |
| Number of Items | 25 |
| Number of items | 25 |
| Occasion | Office |
| Occasion Type | Anytime, Business, Formal |
| Recommended Uses For Product | Documents, Letter, Seed |
| Size | A4 |
| Special Features | Peel & Seal, Self-Adhesive Closure |
| Style | A4 |
| Unit Count | 25.0 count |
P**N
Great all round product envelope
Perfect to have on standby for those larger items you might need to post or save such as copies of certificates. The seal is extremely strong and does not require additional tape when sending. These are packaged in thin film so once opened there is no easy way to keep them together but apart from that this this is a perfect product. Ideal thickness so that additional postage will not be added. Sufficiently durable to store documents longer-term. Perfect fit for A4 sheets and could probably take up to about 10 sheets per envelope.
M**S
Value for money
A smart idea. Just open, place paper inside and seal. Good quality.
D**E
Functional and Cheap Envelopes
These enveloped are fine for when I wanted to return some formal A4 letters. You have to fold the A4 in half but this is standard for business letters. The envelope is functional and seals well. The paer used is a little on the thin side and not premium grade but functionally these envelopes do the job.
L**A
perfect envelopes
Excellent value for money excellent adhesion and not transparent
N**H
Fab envelopes
Great envelopes, very good paper and easy to close. Highly recommended
M**A
Good value and quality
Strong and good seal. Recommended
J**R
Excellent quality & value
Excellent quality & good value for money. Very pleased.
O**R
Nice items
Decent quality in my view
Trustpilot
2 weeks ago
2 months ago