The BB Set*2 is a LED experiment pad. You manually Control the LEDs using trimmers. The LEDs used in this set are extra big, 1.4cm in height (not including the wires) and 1.1cm in diameter. There are 16 LEDs in total, 4 red, 4 blue, 4 green and 4 white. The circuit can be used as mini stage lighting or just to play with. Requires a double dual breadboard and a 9v battery holder which are not included in the set. Price: upon request.