We consider this a vital upgrade that should be done to your Baby Hawk R.
With all the small parts and tight tolerances on micro builds these days, we end up pushing limits.
This spacer / pad will keep your ESC board from touching / shorting out on your frame. Don’t ask how we know, or why we designed this part. The gap between the ESC and frame is pretty small. The boards are also mounted on anti-vibe silicon bushings, which if you tighten your electronics down too far….it will short and let out the magic smoke.
These were designed to be thinner then the bushings, these wont take away your anti-vibe properties, but they do provide a layer of non conductive material that “floats” between your ESC and frame.