Retractable Landing Gear Skid for 20mm Arm CF tube

HML850 Features
HML850 Quick Install Retractable Landing Gear Skid Set for 20mm Arm Hexacopter Octocopter Multicopters
Introduction:
The retractable landing gear is designed for the Hexcopter Frame and Octocopter Frame in order to provide a better perspective inaerial-filming / photography work. By using a 2-position switch channel of the R/C transmitter, you can control the landing gear to retract remotely. The retractable landing gear will not block the view of the camera lens, making smooth shooting in all directions possible.
Product Details
- Weight: 750g
- Suggest wheelbase: 800mm-1050mm
- Suggest weight: <10kg
- Suit for multicopters tube diameter 20mm
Tips:
If the switch channel on the TX has fail-safe function, set the fail-safe value to [Lower] position, so that the landing gear will be in [Lower] status when the receiver enters fail-safe, to land the aircraft safely.To avoid false switch triggering, you can use the slide lever or other trim as the landing gear’s control switch.
http://v.youku.com/v_show/id_XNjU0MTY4MTY4.html
http://v.youku.com/v_show/id_XNjU0MTAwNDQ0.html