Just a helpful hint. I use CORRUGATED poster board for my target backing. I have one 24"x 36" backing that I've used for at least 4 years now. The little plastic "compartments" that the corrugation creates keeps big chunks of the posterboard from being blown off the backing. Works great & found it by accident (promo poster for a concert that I removed after the concert date). Since then I use nothing else. Very light, very durable. Even if you get large holes from (hopefully) hitting the bullseye a lot, just slap a piece of duct tape over it & you still have a solid backing.