These glow-in-the-dark Halloween decorations are a must if you're expecting trick-or-treating kids! Use them to line your sidewalk or driveway to keep kids off the grass. They're also great for keeping guests on track in a haunted house. Put them on the table during the Halloween party as decorations and to show where the goodies are! Plastic. 5 1/4" x 5 1/4" x 8" Expose items to direct daylight to activate glow. © OTC