Blake Purely Everyday C5+ 162 x 235 mm 90 gsm Gummed Mailer High Window Envelopes (4419HW) White Pack of 500

Gummed flap for a long shelf life and reliable sealing High quality 90 gsm paper Mailing wallets perfect for use on mailing and inserting machines Ideal for business correspondance, letters and other mail High Window: 45 x 90mm, 72 up, 18 left