6 1/2 x 9 1/2 Booklet Envelope - 24# White - Open Side (6.5 x 9.5) - Large Envelope Series (Box of 1000) A Quantity of 1000 - 6 1/2 x 9 1/2 Booklet Envelope - White Standard Gummed Flap. 24# White Paper Great for catalogs, calenders, advertisements or announcements