Ring: bit expansion board: A simple PCB for the micro: bit. (1)Extends the micro: bit’s 3 GPIO ports. (2)Convert the P0/P1/P2 port to the common GVS port. (3) Install 3 AAA batteries to drive the car or other accessories.

Six Fun Cases In One Kit: kids can build 6 shapes, including traffic lights, brick cars, temperature-controlled fans, smart desk lamps, wipers, and trebuchet.

Well-designed Assembly Instructions and Courses: it makes the kids learn coding easily as well as how to build blocks interestingly.

Almost 200 Pieces Bricks: In fact, children can use these rich building blocks to build more favorite shapes

DOES NOT INCLUDE: micro: bit board and BATTERY!!!

Suitable for ages 7 years and older.

Wiki Tutorial:https://www.elecfreaks.com/learn-en/microbitKit/ringbit_bricks_pack/index.html.