Medium torque DC electric Motors with operating range 1.5 to 6.0V, Rotation clockwise (shaft end view). Dimensions: L: 27mm x 24 dia. Shaft length 8.6 x 2.0mm dia. Weight 28g,tech specs : Nominal voltage: 3.0V,operating range: 1.5-4.5V,No load speed: 6600 RPM ±10%,No load current: 0.13A,Speed at max. efficiency: 5100 RPM,Current at max. efficiency: 0.4A,Output: 0.42W,Torque: 11.6g-cm,Stall torque: 55g-cm min.Stall current: 1.4A max.approx,price of these dc electric motors includes uk delivery.