One pack containing 80 kinds of plastic gears and related parts for DIY toys, hobby models, and educational projects. This kit brings a wide selection of mechanical components together in one set so you can prototype, , or upgrade small machines without hunting for individual parts. Key benefits Complete, ready to use assortment: Includes a broad range of gears and accessory parts so you have the common components needed for gear trains and basic transmissions. Saves time on sourcing parts: One package supplies many gear types and accessory items for multiple projects and repairs. Versatile for hobby and education: Designed for smallscale mechanical builds, model cars, robotics prototypes, and classroom demonstrations. Practical performance for hobby use: Plastic gears keep assemblies lightweight and quiet, suitable for light to medium duty mechanisms. What is included Assorted plastic gears including spur, bevel, worm, and crown styles Pulleys and belts for power transmission and speed variation Shafts and coupling pieces for mounting and alignment Small motor suitable for driving gear assemblies Additional accessory pieces for assembly and fitting How these parts solve common problems Easily create gear reductions, speed increases, and direction changes without custom machining worn or broken parts in slot cars, toy models, and small robots quickly Combine multiple gear types to test different torque and speed outcomes during prototyping Function and compatibility Function: transmit motion, change rotational speed and torque, convert axis orientation, and connect motors to driven parts Compatibility: intended for hobby and educational applications and compatible with common smallscale model components and motors used in toys, model cars, and DIY robots Material: primary gear material is plastic for lightweight, lownoise operation; other accessory materials vary within the kit to suit assembly needs Suggested use scenarios 1) Build or a slot car gearbox by selecting matching spur and crown gears, adding a pulley and belt for alternate drive configurations, and installing the supplied shaft and motor. 2) Prototype a small wheeled robot: use bevel and worm gears to route drive from the motor to wheels, test different gear ratios, and iterate without custom parts orders. 3) Classroom STEM lab: demonstrate gear ratios, mechanical advantage, and power transmission by assembling multiple gear trains and comparing speed and torque outcomes. Why this kit stands out Wide mix of gear types and accessories in a single package makes it practical for repeated hobby use and rapid prototyping. Designed specifically for handson DIY and hobby projects where flexibility and variety matter more than singlepurpose parts. Package details One package containing 80 kinds of gears and accessory parts for DIY toys, hobby models, robots, and slot car parts and accessories. Note Intended for mechanical hobby and educational use. Check individual part sizes within the kit to ensure compatibility with your specific project requirements.