ELECFREAKS micro:bit Ring:bit V2 Kit Micro Car, micro:bit Coding Starter car kit with Wiki Tutorial (Without microbit Board) CR10V2 2*extended timing belt

2*extended timing belt

and other actuators

You can find it in such varied products as Lego toys

Most of the time

ELEGOO penguin bot is developed based on Arduino platform and has many talents inside

ELECFREAKS micro:bit Ring:bit V2 Kit Micro Car, micro:bit Coding Starter car kit with Wiki Tutorial (Without microbit Board) CR10V2 2*extended timing beltWithout micro: bit Board The ELECFREAKS Ring: bit Car is a small DIY smart car driven by the BBC micro: bit and the ELECFREAKS Ring: bit. The Ring: bit extends the micro: bit's 3 GPIO ports and allow for different sensors and components to be easily attached to the micro: bit. A basic Ring: bit Car can be easily programmed to run autonomously, with a remote control, and even create rainbow beacons of light. Just add one of the many extensions