Great Papers! Jolly Holly 2-Up Invitation, 25 sheets/50 invitations, 5.5" x 8.5" (2011612) 25 sheets/2 invitations per sheet/50 invitations total 8.5" x 5.5" invitation size Micro-puffed for easy separation Great Papers! 6" x 9" or A9 envelopes sold separately Compatible with most inkjet and laser printers