◾️ This is a single-shaft normal motor included with a Mini 4WD kit. ◾️ There are 11 Mabuchi motors and 10 SMC motors. ◾️ How about these for a normal motor race? ◾️ How about these for practicing motor break-in? ◾️ Sold as a set. No individual sales. ◾️ Returns and complaints are not accepted. Please purchase only if you understand this.