DL+ Mailer Gummed CBC Window White 90gsm Envelopes (Qty 1000) 114mm x 229mmEnhance your mailing efficiency with our DL+ Mailer Gummed CBC Window White 90gsm Envelopes. Sized at 114mm x 229mm, these envelopes feature a CBC (Central Back Closed) window design for clear address visibility and a professional finish. Ideal for A4 documents folded into thirds, invitations, and business correspondence, they come with a gummed closure for secure sealing. Perfect for high volume mailings, this pack of 1,000 envelopes combines