This kit has 7 LEDs that are used to display a random dice number every time the 'start' button is pressed. A PIC micro-controller controls the dice. The 'start' switch mounts directly onto the board allowing it to be used as built or the dice can be housed into an enclosure.Kit includes:1 x PP3 battery clip lead (heavy duty)1 x 3 AA battery cage with clip7 x red 5mm diffused LEDs - 275mCd7 x 330R resistors1 x 6mm PCB mount tactile switch1 x IC socket 8 pin1 x electronic dice kit PCB1 x pre-programmed ICSize: L66 x 39.5mm.Requires: 3 x AA batteries soldering iron solder and wire cutters.