To turn on the flashing light bow simply slide the round button located on the base to the right. These bows will transition from color to color and then flash quickly. Use the adhesive on the bottom of the bow to stick on your presents easily! Specifications Colors: Red, Jade, Blue &amp LED Color: Rainbow Ribbon Batteries: Includes 2 replaceable CR927 batteries Height: 2.5 in. Width: 5 in. Length: 3.5 in. Weight: 0.16 lbs