75 pcs-lot different type mini gear Plastic Gear Set Soldering Iron The module (MicroSD Card Adapter)

The module (MicroSD Card Adapter) is a Micro SD card reader module and the SPI interface via the file system driver

LiPo Batteries

This DC motor is excellent for high school

This is Dual Shaft NEMA 34 CNC Stepper Motor

75 pcs-lot different type mini gear Plastic Gear Set Soldering Iron The module (MicroSD Card Adapter)75 pcs lot different type mini gear Plastic Gear Set Gears are incredibly useful they can be used to create custom gearboxes to transfer motion, change output shaft speed, increake torque, and any number of other gear like functions. Different types of gears have different purposes and this kit has a great assortment of regular gears, crown gears, worm gears, linear gears, double reduction gears, and even a few pulleys to experiment and create with.