... in beautiful colors,Stop flashing when the screw is loosened Red, yellow,orange, blue, jade and white LED colors are availableCan ... pcs of flashing lights7.Flashing light color,white light,red ,blue8.Used for promotion gifts1,How it works: Screwing the pin tightly ... piece on opposite side.- We have Magnet ,Military Clutch ,Safety Pin for choosing .- Also you can select the switch button styles in ...