12 x 15-1/2 Catalog envelopes with self seal closure for mailing, storage, and organizing. Keeping your home or business organized is imperative! Whatever your needs, catalog envelopes are a must for keeping projects, files and mailings manageable. These heavyweight catalog envelopes are made of 28 lb. brown Kraft stock that can withstand extensive handling, as well as mailing. Contents are protected during use to give you assurance that they arrive unharmed. When folding is undesired these envelopes are the right choice - the 12 x15 1/2 size will accommodate standard or over- sized documents without folding. Redi-Seal® closure saves time and makes a secure permanent seal. Purchasing envelopes will be at a minimum with the convenient 100 count giving you more time to focus on business. Quality Park delivers the products you need for success!