This mini spinner ball is a lot like its popular bigger cousins, but in a great tiny size that fits in your hand, pocket, or purse. Hold down the button and 6 bright multi-color LEDs within the ball twirl through colorful light patterns. These mini spinners come with a practical keychain attachment. The diameter of the ball portion is about 1.5" wide. The whole spinner is about 4.25" tall. Uses replaceable button-cell batteries (included).