165mm x 165mm Square Wallet Gummed Window White 100gsm Envelopes (Qty 500)These 165mm x 165mm square wallet gummed window envelopes are crafted from 100gsm white paper, providing a professional and polished look for your mailing needs. The convenient window design allows for easy address visibility, eliminating the need for separate labels. The gummed flap ensures a secure seal, keeping your contents safe and protected during transit. Ideal for sending invitations, greeting cards, or small documents, these envelopes come in