Prima 12 x 12 Double Sided Paper Printery Collection - Pressman. This is a great one for Artist Trading Cards! I am so ready to cut it up to make some great ATCs. Prima Marketing Paper 843496. It is 65lb. heavyweight, double sided 12 in. x 12 in. paper that is acid and lignin free. This nuetral color paper is great for all of your paper crafting needs. Check out the matching cling mount rubber stamps too!