littleBits STEAM Student set, Up to 4-studentsThe easy to use electronic building blocks snap together with magnets empowering kids to create inventions, large and small Each color coded Bit has a specific function (e. g. lights, sensors, motors, inputs, and outputs) and is reusable for infinite number of inventions Comes with 19 BITS Including power, light sensor, temperature sensor, motors, buzzer, LED, button, fan, number, dimmer, pulse, and more; 40 Accessories including wheels, mounting