<b>Plastic Gear</b></br></br> <b>Description:</b></br> 1.The plastic gear is made of high quality plastic, wearable and long service life.</br> 2.Small parts, easy to use, great model making accessories for all kinds of cars, robots, etc.</br> 3.Please carefully check whether the product information meets your requirements before purchasing. If you have any questions, please feel free to contact us!</br></br> <b>Technical parameters:</b></br> Brand: Othmro</br> Product Model: 122.5A</br> Number of Teeth: 12</br> Outer Diameter: 7mm/0.27"</br> Hole Diameter: 2.5mm/0.1"</br> Thickness: 5mm/0.2"</br> Modulus: 0.5</br></br> <b>Package content:</b></br>20 x Plastic Gear</br></br> <b>Note:</b></br> 1. Small parts. Not for children under 3 yrs.</br> 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.