Quality Park Gummed Kraft Catalogue Envelopes - 12" x 16" - 200 Pack12" x 16" catalogue envelopes with spllit gummed flaps and sturdy 24 lb brown Kraft stock for home or office mailing, storage and organizing. Keeping your home or business organized is imperative! Whatever your needs, catalogue envelopes are a must for keeping projects, files and mailings manageable. These sturdy catalogue envelopes are made of 24 lb brown Kraft stock that can withstand extensive handling, as well as mailing. Contents are protected