??Description:<br /><br />Item Name: 8.5x20mm Coreless Motor<br />Shaft: 1mm<br />Shaft Length: 5mm<br />RPM: 50000 rpm<br />Size: 8.5x20mm<br />wire color is different but function is the same?random delivery<br /><br />Package Included:<br /><br />1 x 8.5x20mm Coreless Motor