A3 500mm x 340mm Rigid Book Calendar Cardboard Envelopes Mailers Qty 20

These are a good alternative to the CP brand. Would purchase again.

Really quick delivery - ordered on the 7th and arrived by noon on 9th. Sturdy and great price. Thanks to the seller.

Good solid cardboard envelopes, but beware is posting overseas at size is "small parcel"

This envelope is very strong and sturdy and has a good, stronng adhesive fastening. Very pleased with them indeed. Bought to send calendars and was spot on for protection.

Good quality, thick cardboard, perfect for sending prints.

Fab envelopes. I sell personalised vellum and these are perfect for sending my A3 sizes in.

I loved these. I used them to send off my calendars that I sold this year. However beware that the adhesive doesn’t last and I noticed the night before shipping them that most came away from the adhesive… one of my customers even lost her calendar because it fell out the package and she ended up with an empty box. The adhesive isn’t strong enough at all. Also the post office classes these as a “medium parcel” not small like someone in the reviews suggested.