Crazepony H210 210 FPV Racing Drone Quadcopter Frame, Carbon Fiber Quadcopter Frame like QAV210 QAV250 for 2205 2206 2306 Brushless motor (Martin IV 1403mm Arms) Martin IV 140 FPV frame is ture X structure, the true X frame design, high quality 3K full carbon Support mini camera mount plate,can mount camera like as RunCam Micro Swift Micro Sparrow and other lenses Bottom plate:3.0mm,Other Plate:1.5mm,suitable for F3 flight controller and Swift Micro Sparrow Easy to assemble,X-structure is much more suitable for FPV racing drone. Suit for 3 inch propeller 3061 3040 3045 propeller 1306 1408 1806 brushless motor