Electronic dice are the perfect item for games of chance or gambling-themed promotions. Just roll or shake the keychain ball and motion sensors detect movement causing the LED die to electronically "roll." Can also be activated with a built-in push/pull tab. When activated, the LED dots on the die blink and change and are accompanied by beeping sound effects. Sounds and blinking start out fast and gradually slow as the number is selected. Easily fits in pocket or purse. Individually polybagged. 1 1/4" Diameter