This experimentation kit allows to compare different gauges of electromagnet wire and experiment how different wire diameters affect the performance of the motors. These experiments can be performed with all of the motors.
All of our brushless motor kits usually include a spool of 27 gauge magnet wire. This kit adds two more spools for comparison: 24 (thick) and 29 (thin) gauges. Each of the spools has 50-60 ft of insulated magnet wire.
It is a good idea to use a multimeter to compare the electrical parameters of the coils.