M10 Medium torque DC Electric Motors with an operating range of 1.5 to 4.5V, ideal for educational and modelling applications,these low voltage dc electric motors work very well with our 2V150ma solar panels and can also be used with small propellors and impellors to make model airplanes,boats,mini wind turbines,fans etc, and are a great replacement if you need to replace a burnt out motor,Rotation is clockwise (shaft end view),Tech Specs are - Dimensions: L: 25 (excluding shaft) x 20.5mm Wide x 15mm High Shaft length 8.1x 2.0 dia. Weight 19g approx. Nominal voltage: 3.0V Operating range: 1.5-4.5V No load speed: 16000 RPM No load current: 0.4A Speed at max. efficiency: 12400 RPM Current at max. efficiency:1.5A Torque: 11.9g-cm Stall torque: 65g-cm ,price for these dc electric motors includes vat and uk delivery.