The 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 boards, mechanical arms, screws, battery, magnet shoes, & more. Learn engineering design cycle – create, play, remix, share Gain creative confidence and 21st century skills: critical thinking, collaboration, creativity, and communication Easy to teach. Fun to use. The littleBits STEAM Student Set is the easiest way to integrate powerful STEM/STEAM learning into the classroom or home. Designed with educators, the toolbox engages students in learning through creating inventions while linking to NGSS/Common Core standards.Product Dimensions (L x W x H): 310 x 229 x 74 MMProduct Weight: 2.2 LB