Wear a crystal star necklace when you don’t feel like thinking. Just squeeze it to make it start flashing and blinking. You want to buy hundreds. Admit it. You know it. You can spin it around then let go and throw it. Height: 2.25 in. , 5.7 cm. Width: 2.25 in. , 5.7 cm. String: 34 in. , 86.4 cm. LED Colors: 1Blue 1Green 1Red 1Yellow Batteries: Batteries for this item are NOT Replaceable.