No. 10 envelope 4 1/8" x 9 1/2" (same size as a regular 10 business envelope) Specially designed for cash register users with beginning and end tape reading 500 Envelopes with Gum Flap Heavy 24lb. Kraft Paper Made in USA If you have a cash register, you will differently need this envelope. Printed report on one front with three sections to record, total register sale from the tape, breakdown of the sale and a deduction section to record all paid out, petty cash, discount... Etc. Envelope is big enough to hold all cash & register tape with no problem. Gummed flap to seal all enclosed. Made in USA.