A printed item independent of an envelope.
A printed, folded mailing piece that reserves space for addressing, postage, etc. and eliminates the need for an envelope.
Printed piece designed to be mailed without an envelope.
A direct mail piece that mails without an envelope.
A brochure that can be mailed as a standalone piece without the use of an envelope.
A common mail package built from one piece of paper stock which does not require an envelope but does provide a response device within its folds.