Coreless 7 x 16 Coreless Motor Propeller set for Micro Quadcopter/ Drone

Description

These are 7×16 size Coreless Motor DIY Micro Quadcopter. Their smooth surface can greatly decrease the wind resistance during the flight. Therefore, 

Besides, the propellers are made of high-tenacity material and thus can sustain crashes. You can have these 4 propellers, or let’s say 2 pairs (red and black) for your mini-copter just to take off, or hold them as spare parts for replacement.