After the popularity of our flashing foam stick comes the led foam necklace clip this funky necklace around your neck and choose from four flashing led chaser sequences r r chasing flashing effect led foam necklacemulticoloured leds inside a foam necklace casingfour chaser sequencesclick onoff with buttonlength 77cm supplied with 3 x ag13 batteries en71 certified amp rohs compliant