133mm x 197mm Banker Invitation Gummed White 100gsm Envelopes (Qty 1000)These 133mm x 197mm banker white envelopes are crafted from high quality 100gsm paper, offering a clean and professional look. The gummed flap ensures a secure seal, keeping your contents safe and protected during transit. Ideal for sending invitations, small documents, or business correspondence, these envelopes combine style with functionality. With a generous pack of 1000, they provide a cost effective solution for bulk mailing, making them