Impact Innovations Halloween Gel Cling Window Decoration, Happy Haunting, 4-Pack Assortment Scary fun Halloween 4-pack gel cling assortment and packages measure 6 x 12 -Inch Collection includes jack-o-lanterns, black cats, bats and more; easy, colorful and affordable way to add Halloween themes to your home decor Unique thermoplastic polymer designed to adhere to non-porous surfaces; special gel formula insures the best elasticity, color and quality Gel clings are reusable year after year; acetate backer card holds gel clings for after-season storage With over 80 million gel clings sold, Impact gel clings are unmatched in scope and product innovation in the seasonal industry