This is an assorted pack of 75 different commonly used plastic gears. It includes all types of gears of different sizes like spindle gears, worm gears, rack, and pinion gears, pulleys, and belts, bevel gears, etc. It is perfect for use in DIY Science Projects and Robotics.Features:High-Quality Plastic Gear for DIY Science Projects and Robotics.Gears come with a standard pitch of 0.5 mod and are compatible with each other.The gear inner shaft diameter is 2-3mm. Fits commonly available toy dc motors.Package Includes:1 x 75 Types of Assorted Gears Pack.
