1,These flash pin are the great attention getter,three, four, five or even more LEDs can place on the pin as request. 2,Oval one hundred design available, and also can customize according to customer?s specific demand. 3,LED light color: RED, GREEN, BLUE, YELLOW, JADE, WHITE,AND OTHERS. 4,Printing on customer logo, your promtion target will become alive with every blinking. 5,Magnet, Clip, Safty-pin, Necklace model availabl