This is a custom designed camera mount for either aerial videos or FPV viewing/flying. This one is custom designed for the E-flite Apprentice to allow you to mount the camera high enough to eliminate the propeller from most of the image. It actually looks cooler to have the prop in the bottom of the image. Very sturdy design with enough room behind the mast to hold the transmitter and battery along with any wiring. U-Assemble in just a couple of minutes with thin CA. Complete with color instructions.