Cardboard Envelopes | 100 A4/C4 Peel & Seal Letter Envelopes | 234 x 334 mm Envelopes for Postals | Rip & Strip Open | Card Mailers for Royal Mail Large Letter Posting (PIP)

Bought the size 249mm x 352mm. Pleased with how thick they are. Good value at 40p per envelope, otherwise I wouldn't have bought 100 of them on my first go in case, but they do seem satisfactory for sending documents or a slim book through the mail. Note that as they come as a box (thick sturdy box) of 100, they're very heavy.Not designed to put anything thick inside, which is why there's no gusset.Bought to send homemade greeting cards, the ones that have a little 3D to them, otherwise I make a box. I could make an envelope out of thick cardstock but I have these now (and I add parcel tape, to be on the safe side, better safe than sorry).I bought these partly to use as index divider cards in the drawers of a Foolscap filing cabinet. These envelopes have no problem standing upright, kept upright by the contents. I write or print a label that I stick to the very top of the flap; I don't fold the top down or remove the adhesive strip. Sizewise, the envelope sticks out enough above filing cabinet contents to make a conspicuous label, and fits the Foolscap width comfortably (but note this size is too wide to fit an A4 filing cabinet in the same position).

All good. Thank you.

I like these envelopes as they have much more room comparing to A4 envelopes. I use this for sending my A4 art prints to my customers and especially when they buy a few, they would just fit in nicely and not cramped. You can actually fit quite a bit in it because of it’s design and shape. The most I’ve done was 7 prints with backing boards, but ai’m sure it can handle more.It has a tear strip opening which makes it super easy to open the envelope!Also, they may look big/wide but they absolutely fit the UK letter boxes.

Always reliable and exactly what I want.

I am using these envelopes to pack A4 sized brochures. The fit is very good. I had hoped for a slightly stiffer board, but I think it will be OK. Time will tell if the corners give enough protection.Prompt delivery, on schedule.

I've been using these to ship items around the world for a few months now & I'm very happy with them.This is my third box & so far no issues, the self adhesive backing is easy to remove & the flap sticks down well. One went to one side of the planet & back again (not intentional) & the item inside is as good as when it was despatched.Will be buying again & do recommend.

I have used these for sending a lot of small (flat) items that I sell and they have been great for this purpose. The card is strong and thick and they feel very sturdy so I wasn’t worried about damage in transit. The adhesive is very sticky also but I have occasionally applied extra tape just to be sure it doesn’t come open for a larger item inside.

I bought these to post CDs and, although they fit nicely, the cardboard is rather thin and tears when you seal the flap. A bit of Sellotape fixes the tear but it shouldn't really be necessary. Not as sturdy as the Triplast envelopes but they are not available at the moment.

Molto comode e robuste

Genial, me encanta que llegan en un día, no huelen mal como otros de otras marcas, y son rígidos. Perfectos y buen precio. Ya los he comprado dos veces y pronto tendré que comprar otra caja más.

Sono perfette, esattamente come descritte!

Yo las utilizo para mandar mis ilustraciones de tamaño A4. Son de cartulina gordita por lo que no son sobres que se puedan doblar con facilidad.

Todavía no los he probado, pero parecen de buena calidad.