C4, Brown Window

New Guardian Envelopes Press Seal C4 Window Manilla [Pack of 250] First class postal protection. Premium manilla envelopes. Superior protection, security and exceptional strength. Distinctive two-tone professional finish. Pocket envelope. Window 40x100mm, 25mm in and 213mm up.

Q-Connect Envelopes Self Seal C4 Window 115g Basket Weave [Pack of 250] Budget envelopes that are ideal for mail shots, invoices and other bulk post. Pocket style. 115g weighted paper. Self seal closure. 85% recycled. Window size 40x105mm, 24mm in and 213mm up. C4 size. Manilla, brown.