There are two specifications of products,Random shipping A:4r/min B:5/6r/min Products Description: -This is a synchronous motor, with 2 pin terminals. Low noise. -Applications: fan, heat air blower, electrical heaters, burn oven, degree light fixtures equipment, microwave oven, and other kinds of electric appliances. Product Name:Synchronous Motor Model: TYJ5O-8A7 Direction:CW/CCW Voltage:AC 220V-240V Frequency:50/60Hz Power:4W Speed:5/6 RPM Motor Size:48 x 17mm/ 1" x 0" (D*H) Shaft Size:7 x 14mm/ 0" x 0" (D*L) Mount Hole Dia:4/ 0 Main Material:Metal Package Include: 2pcs motor