Quadifier Diamondback HD DJI O3 5" Freestyle Frame - Orange Hardware and TPU (REV. 2)The Quadifier Diamond back DJI O3 is a 5 inch freestyle frame that is designed to be nimble, agile, efficient, and fit a DJI O3 system. I have always been a picky person when deciding on a frame. The Diamond Back is a frame that fit all of my requirements. It has the strength and looks to make your jaw drop. Check out all our 5" Frames and the rest of our Quadifier Products! Features: Designed for 20x20 and 30x30 stacks Has 20x20 mounting in the back