1.1pc AA batteries and to twist tightly 2.there are single blinking, green, red,white, blue,yellow 3.Material pc length 12.5cm Product DetailsLED luminous tube inside, tri-blinking, (there are single blinking,like green, red,white, blue,yellow, solid brightor tri-blinking).it will be floating to luring the squids, fish, cuttlefish, octopus,etc. in the water. The light will be on just to put 1pc ...