The product is a single issue comic book from 1974, MARVEL TWO IN ONE #1, featuring the characters The Thing and Man-Thing. Written by Steve Gerber, with art by Gill Kane and George Roussos, the cover was done by John Romita. Published by Marvel Comics in the United States, first printing.
All comics, magazines and trade paperbacks are shipped between thick cardboard to ensure the best condition during shipping. As a collector myself I understand how important this is. :)