Crazepony Martian RX190 190 FPV Racing Drone Frame Carbon Fiber Quadcopter Frame like QAV-R QAV210 QAV250 by (190) (Martian 190) Carbon Fiber Material-----This 190 drone airframe with 3mm removable arms is Carbon Fiber,which makes the drone body featuring with light weight but very strong. Martian I is better for freestyle. Support Angled Camera Mount (25 -30 degree)-----Support 25 -30 degree angled camera mount;Arm thickness-3mm,,lower thickness of plate-1.5mm Multiple Motor Mounting Holes-----Multiple motor mounting holes to fit a variety of motors (M3 and M2 screw mounting patterns). Easy Installed-----Quick Release Fixings aluminium mounting hardware, it allows you to swap out arms more quickly, and you don't even need to remove the top plate to change arms any more Support brushless motor and propellers: Support 2204 2205 2206 2306 2307 beushless motor and 4 inch 5 inch propeller like 4052 4053 5045 5046 5552 props etc