This original big gear with shaft is a spare part designed for JJRC H31 RC quadcopter. Good choice for you to enjoy more flying joys.<br><br>Features:<br>100% JJRC band.<br>Easy to install.<br>Weight about 1g, light and durable.<br>Made of good and new technology material.<br>A spare part designed for JJRC H31 GoolRC T6 RC quadcopter.<br><br>Specifications:<br>Brand name: JJRC<br>Model: H31-14<br>Item name: Big Gear with Shaft<br>Weight: About 1g/pcs<br>Suit for JJRC H31 RC quadcopter<br><br>Package information:<br>Package size: 5 * 4 * 2cm / 1.96* 1.57* 0.8in<br>Package weight: 4g / 0.14oz<br>Poly bag package<br><br>Package list:<br>4 * Big Gear with Shaft