Our Promotional Shelf & Bar Wobblers Are an Affordable Yet Effective Method of Visual Marketing. Hang Them From Your Shelf Edges & Watch Them Wobble, Catching the Eye of the Customer & Drawing Them Straight to Your Product. Adding Another Dimension to Your Pos Display, Our Wobblers Are Printed on a Premium Thick Card, with a Self Supporting Card Arm. There is Glue on the Back That Can Firmly Stick to the Surface of Various Objects, & Its Available for Matte & Bright Style Both."