Your guests will get the evening off to a startling start when they open their Halloween party invitation and one of these paper bats flies out! All you have to do is wind up the included rubber band and enclose one of these creatures of the night in a trick-or-treat cellophane bag, Halloween party favor bag, book or envelope to set the scene for a creepy surprise when the bat takes flight. Teachers will love turning the tables on mischievous kids with this Halloween prank. Paper with rubber bands. 5 1/2" x 4" © OTC