Disney Store Little Girls Light Up Princess Cinderella Costume Dress - 4T Blue Authentic and exclusive Disney Store product with reliable quality and durability Cinderella cameo with blue glitter accent Five sets of motion-activated lights in front of skirt Velvet bodice with pleated organza overlay, glitter detailing, blue foil design, silver sequin trim over blue ric-rac, glittering tulle neckline and stretch fabric back Puffed satin shoulders with blue organza overlay, glitter detailing, grosgrain ribbons with silver edging and gathered tulle yoke Shimmering organza gathered peplum with iridescent finished-edge and silver-edged grosgrain bows Glittered light blue mesh with silver finished-edge and white tulle top skirt layers Satin underskirt has lights, and battery pack in a pocket with self-stick closure at waist of underskirt **Lights activated by "motion" when battery pack switch is in "ON" position, and will briefly activate in "OFF" position if try me button is pressed Replaceable batteries Size Small 4 for ages 3-4 years old, 33-37 lb and 38-42" in height