![Pack of 15 A4 Cardboard Envelopes,Corrugated Expandable Capacity Book Mailers, 400gsm, Peel and Seal, Rigid and Sturdy, Rip and Strip Open, Rigid for Royal Mail Letter Posting by Leo Design (15) : Pack of 15 A4 Cardboard Envelopes,Corrugated Expandable Capacity Book Mailers, 400gsm, Peel and Seal, Rigid and Sturdy, Rip and Strip Open, Rigid for Royal Mail Letter Posting by Leo Design (15) :](https://m.media-amazon.com/images/I/31fLRaePfNL._AC_.jpg)
Pack of 15 A4 Cardboard Envelopes,Corrugated Expandable Capacity Book Mailers, 400gsm, Peel and Seal, Rigid and Sturdy, Rip and Strip Open, Rigid for Royal Mail Letter Posting by Leo Design (15) :
100% Paper | Expandable Envelopes | Capacity Mailer | SR Mailing | Royal Mail PiP Friendly | Recyclable Eco-Friendly Expandable Envelope C4 Our C4 expandable envelope is made from 100% recycled material
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