B4 Envelopes Self Seal 353x250mm 90gsm - White 250's

These white B4 envelopes measure 353x250mm and are made from 90gsm paper, offering a balance of durability and lightweight handling. Featuring a self-seal closure, they provide a quick and secure sealing method. Supplied in packs of 250, they are well-suited for professional mailing of larger documents.