Check the listing for details. Plastic Gear Set Small Worm Motor Gears Module 0.5 Pack of 200. Condition: New. Listed at 12.77 USD. What is this?Plastic Spindle Gear Set is a lightweight, durable transmission unit for precise power transfer in small systems. It links DC motors to driven components in RC cars, robotics, and DIY builds, ensuring reliable motion control with compact shaft alignment.What will I get? The plastic gears set,provides here,is in size of:Modulus: 0.5Material: PlasticWeight: 54.1gMost gear is 2mm aperture.Inner hole diameter:from 0.3mm/0.01 inch to 3.9mm/0.15 inchPackage content: 200±2 pcs Plastics Spindle GearsIs there any advantages of the product?It is engineered from durable polymer for lightweight operation, reducing rotational inertia in compact mechanisms. Oil-resistant plastic prevents rust with low-maintenance design, suited for RC cars and robotics.How to use it?1.