Custom Full Color No. 9 Reply Envelopes Reply #9 Envelopes are small enough to fit into a standard No. 10 envelope. These full color printed No. 9 Envelopes are 3 7/8 x 8 7/8. When you mail out an invoice or statement to a client, include a address #9 envelope when you expect a payment in return. It is also used by charities, billing agencies and other business organizations for ordering or remitting applications. Your envelopes will be printed with your return address, full color logo, and 3 lines for the client to print their address. Would you like just black or blue ink instead of full color? Check out this #9 Reply Envelope instead!
