Meet the JIMU Robot BuilderBots Overdrive kit: another STEM solution that lets your kids build their own robots and program them. It comes with over 400 snap-together interlocking parts and connectors, servo motors, an ultrasonic sensor, DC motors, and motion control box.
The Overdrive Kit comes with everything your kids need to build their own DozerBot and DirtBot. The mobile app not only lets users put the bots together but also control them. Blockly coding is supported. This kit is available for $119.99.