High Torque: Adopting high quality motor steel material,with high torque 13Ncm(18.4oz.in), low self-inductance reactance, responsive and can avoid system error.Low Resistance: stepper motor can get a lower resistance value compared to motors of the same thickness and torque. This considerably increases the thermal conductivity of the motor. This effectively reduces the increase in temperature.Dimensions: 42x42x23mm/1.65x1.65x0.9inch,1.8 deg. step angle(200 steps/rev),Rated current 1.0 A & resistance 3.5ohms.Wide Application: This small motors can be used in various area, such as stage lighting; laser-engraving; textile machinery; placement machine; non-standard equipment; 3D printer; automation equipment, and etc.Connection: Black(A+), Green(A-), Red(B+), Blue(B-)colour: as shownMaterial: MetalPackage Contents:1 x Stepper Motor1 x 1m 4pins cableOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.