◾️ This is a dual-shaft normal motor included with a Mini 4WD kit. ◾️ There are 16 Mabuchi motors and 32 SMC motors. ◾️ How about for a normal motor race? ◾️ How about practicing motor break-in? ◾️ Sold as a set. No individual sales. ◾️ Returns and complaints are not accepted. Please purchase only if you understand this.