The Original Slinky Brand Light Up Slinky glows while walking down stairs and comes alive in your hands with illuminating red and blue flashing lights! Just like an original Slinky it stretches like an accordion, bounces and walks down steps, but this toy, made of a transparent colorful plastic, features a battery operated light-up device that when turned on give you brighter, crazier, more extreme spring action than ever before. Turn out the lights and watch the psychedelic light show as you stretch Slinky like an accordion or make it walk. Light Up Slinky comes in one of three random colors; red, green or purple and requires 3 AG13 batteries, which are included. Light Up Slinky measures 3.25in. diameter wide by 2.5in. high. Recommended for children 5 years of age and older.