?This is Yikong Parts 18026 13T Metal Pinion Gear for 1:18 Yikong RC cars， which will help the motor functioning durable and steady.<br> <br> Specification:<br> Materials: Metal.<br> Metal pinion gear diameter: 1cm<br> Package Size: 2 * 1.5 * 1.5cm / 0.8 * 0.6 * 0.6in<br> Package Weight: 10g / 0.4oz<br> Adhesive Tap Package<br> <br> Package List:<br> 2 * 18026 Metal Pinion Gear<br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>