The Quadifier Cobra is a 5 inch race frame that is designed to be nimble, agile, and efficient. I have always been a picky person when deciding on a frame. The cobra is a frame that fit all of my requirements. It has the strength and looks to make your jaw drop.
 
Features:
    Designed for 20x20 stacks
    Crossfire antenna mount
    Stretch X for more efficient flight
    Gopro mounts available
    5mm arms
    Fits only nano 14x14 size cameras
 
Stretch X geometry
    This frame is designed with a stretch X geometry which gives you much more efficient forward flight allowing you to fly longer.
 
My personal race setup:
    Talon Giga fusion stack
    Foxeer nano predator
    Foxeer lollipop
    Talon 2207.5
    Azure power 5148
    Tbs unify 
    
Package contents:
    Cobra frame
    Hardware
    TPU nano camera mount
    TPU AXII/lollipop antenna mount