Blake Purely Packaging C3 (A3) 450 x 324 mm Board Back Pocket Peel & Seal Envelopes (4200/50) Manilla - Pack of 50

Good quality

Very durable, functions well. Seals very well. Postage is protected. Great value for money. Brought many times. Light brown colour. Can be used for cards and large letter. Lightweight

These are slightly flimsier than I’ve bought in the past and the ‘Do not bend’ is pink rather than red. But this is more than reflected in the price and that makes them excellent value for money. I use them to send A4 presentation folders holding up to 12 sheets of quality paper and everything fits in perfectly.

Excellent board backed envelopes, with 'please do not bend' printed clearly on them. I made the mistake recently of buying a cheaper alternative and definitely regret it. (For the saving of several pounds, I am now stuck with more than 100 flimsy, bendable envelopes with an unpleasant font on the front!) Both the grey board and the brown kraft paper used are of decent thickness to protect most flat items. They are also durable and reliable. Would definitely recommend. Although, for e.g. single prints, they might still need cardboard stiffeners so bear this in mind.

Card is not the heaviest duty, advise an additional stiffener if it's important using Royal Mail, which of course is a chore. However, by comparison to Rymans who I used to use, they are not bad value and I bought some card stiffener to insert as needed. Extra cost yes, but overall it works OK for my business.

Quick delivery at a good price

I use board back envelopes regularly and have tried a few suppliers for these. Oftentimes, the board quality can be too thin and cheap, which isn't ideal for something you need to protect during transit through the postal system. However, I'm pleased to say that the quality of this pack is absolutely spot on. Decent gsm Kraft paper and grey board means I have confidence using these and would be happy to recommend them. I'll order again when my current box runs out and hopefully they'll have kept up the same great quality.

They are envelopes for A4 paper good adhesion and fit within the large letter category the cardboard back provides durability and protection so are quite useable for things you wish to protect in postage whilst not adding much to the overall weight of the letter therefore minimising postal costs

Ordered them in The Netherlands in October 2022, for my small art prints business. The the carton part is a liiitle bit thiner than the previos envelopes I ordered (the same brand), which I like even more. It IS thick enouph and does not bend under its own weight. Will definitely order again :)

Ottimo prodotto. E' la seconda volta che lo ordino per i poster 30x40.

Estupendo para enviar billetes o pequeños documentos que no quieres que se doblen. No me gusta las letras impresas abajo: "Please do not bend"( por favor no doblar) Me hubiera gustado que fuera en Castellano o que no pusiera nada.No me di cuenta de esto cuando los compré. Aparte de eso , son unos sobres mágnificos y muy baratos.

Wie erwartet

Decent chipboard thickness. I use them to ship out stickers. Keep in mind that it doesn’t extend all the way, the dimensions of the chipboard area is probably around 4”x6”