Readytosky 220mm FPV Racing Drone Frame Carbon Fiber Stretch X Quadcopter Frame Kit 4mm FPV Frame Arms with 5030 Props and Lipo Battery Straps With full carbon fiber material, perfect design to make the drone body featuring with light weight but very strong. X-structure is much more suitable for FPV racing drone,to reach high speed, violent move, more flexible and stable. Space layout is reasonable, equipment is easy to install.Light weight,super stiff,finely tuned airframe designed for high performance FPV Drone Racing. Full 3K Carbon Fiber airframe featuring 4mm removable arms,light as well as solid. Come with sponge landing gear, which provide a simple, light-weight, crash-proof landing gear option, which also soften the airframe during touch downs.