Premium Armattan motors come of a quad built by Armattan them self’s all 4 working however 1 motor needs a new shaft as it’s got a slight bent but still spins up just jitters slightly on throttle punches (this motors I have marked with a slight white dot for easy findings) loads of wires left on motors for re soldering, very good and powerful motors can run either 2s or up to 6s easy fix for someone who is looking for some sweet motors