9" x 12" catalog envelopes are made with heavyweight stock for home or office mailing, organizing and storing. They are a must for keeping projects, files and mailings manageable. Envelopes are made from sturdy, 28 lb. gray Kraft stock for a distinctive look. Contents are protected during use to give you assurance that they arrive unharmed. When folding is not desired, these envelopes are the right choice. 9" x 12" size accommodates 8-1/2" x 11" flat documents. Fully gummed flaps ensure a secure, permanent seal.9" x 12" catalog envelopes are made with heavyweight stock for home or office mailing, organizing and storing. They are a must for keeping projects, files and mailings manageable. Envelopes are made from sturdy, 28 lb. gray Kraft stock for a distinctive look. Contents are protected during use to give you assurance that they arrive unharmed. When folding is not desired, these envelopes are the right choice. 9" x 12" size accommodates 8-1/2" x 11" flat documents. Fully gummed flaps ensure a secure, permanent seal.