Quality Park 12" x 16" Gummed Brown Kraft Catalogue Envelopes - 100 Pack12" x 16" catalogue envelopes with gummed flaps and heavyweight 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. Fully gummed flaps assure a secure permanent seal. Purchasing envelopes will be at a minimum with the convenient 100 count giving you more time to focus on