Our White 8 Mil Inkjet Gloss Postcards come on an 8 1/2" x 11" sheet and come 2 per page. Each postcard measures 5" X 7", and they can be used as either postcards or even invitations. These postcards are microperforated for easy breaking and cleaner edges. Made for Inkjet Printers only! Made from an 8 mil (195gsm) Inkjet gloss cardstock that is optimized for HP Inkjet Printers but works great on almost any inkjet printer brand. Glossy on 1 side, matte on the other. Both sides are printable.