These string lights are out of this world! Light up the night with these Solar System Planet String Lights. Kids will love these battery-powered LED planets hanging over their bed, above their desk or in a play area. Makes a great decoration and also can be used as a night light. Helps with planet recognition and learning the order they sit from the sun. Includes 10 LED illuminated planets on a 78.75 inch long string. For indoor use only, requires 2 x AA batteries (not included). Dimensions: sun light is approximately 3.5 inches in diameter, box is 8.75 x 9.5 x 2.5 inches.