







📬 Seal your professionalism with every envelope!
Postmaster A5 Envelopes (229 x 162 mm) come in a 500-pack of 90 GSM bright white paper, designed for A4 folded or A5 sheets. Featuring a self-seal flap for quick, hygienic closure and an opaque blue security lining to protect your privacy. PEFC-certified for sustainability and proudly made in the UK, these envelopes combine eco-consciousness with premium quality trusted by businesses nationwide.




| Manufacturer | Bong |
| Brand | Postmaster |
| Model Number | RBL10629 |
| Product Dimensions | 16.2 x 22.9 x 0.05 cm; 3.65 kg |
| Colour | A5 x 500 |
| Closure | Self-Seal |
| Shape | Rectangular |
| Material Type | Paper |
| Number of Items | 500 |
| Size | A5 |
| Sheet Size | 229 x 162 |
| Paper Weight | 90 |
| Paper Finish | Matte |
| Manufacturer Part Number | RBL10629 |
| Item Weight | 3.65 kg |
D**K
Easy to use. Good value.
Decent quality at a good price. Self stick not great, just adequate. I always tape my letters etc sealed shut anyway so no biggie. Plain white and just the right thickness so its not see through. Prints good in my printer. Recommended for anyone needing an envelope that just does what its meant to.
K**
Great item
Great value for money. Seal sticks really well. Not overly thick but normal quality.
R**Y
good value
good value
R**E
Great price for 200 envelopes
Very happy with the quality of these, and 200 of them for the price is a deal compared to how much others are selling for the same price, but a lot less of them.Self sticky can be a bit weak, so if you're sending internationally, add a bit of tape to help hold it down.
S**S
product Great Delivery Rubbish
This was part of a multiple order. The product was absolutely fine, but delivery despite specific safe place instructions, was left outside the front door -of a house with a drive but on a busy bus route - the information was "handed to resident" - I was 20 miles away at the time!! I do worry about some amazon Delivery drivers!!!
H**D
Great Quality
Good quality and didn't have a problem with large documents.
M**.
Good Product
Good Product
C**S
Keeping chaos at bay
"An envelope, you say? Just a hollow thing for letters? Not for me. I see them as canvases, blank and waiting. The scratch of pen on paper—there’s a kind of magic in it, a rebellion against the void. For years, I scribbled on the backs of used envelopes, their creases holding secrets. Now I’ve graduated to the new ones, crisp and clean, ready to hold my ramblings. Sometimes, I tuck attachments inside, like whispers folded into the dark. And those A5 envelopes? They’re my vaults, my archives, where the outside tells the story of what’s hidden within. It’s not just paper—it’s a ritual, a rebellion, a way to keep the chaos at bay."
Trustpilot
2 months ago
5 days ago