The positional servo is a motor in the Climate Action Kit. It spins 270 degrees and is transparent (see-through) grey plastic. It can mount to either blocks or wheels that come in the Climate Action Kit.
This video will guide you through the basics of how to connect the positional servo to the Climate Action Kit breakout board, and how to use the servo (270 positional) code blocks in MakeCode.
Positional Servo | Tutorial
MakeCode Blocks
The Forward Education extension comes with several new blocks you can use to control the positional servo. Download the sample code below to your micro:bit to get started with testing your positional servo.