ITEM NAME:Micro mini 15mm stepper motor 2-phase 4-wire stepping motor copper metal gear LJ Brand New and High quality Motor Size: 14.5* 11.8MM Lead: 2 phase 4 wire Output Shaft Diameter: 1.5 MM Output Shaft Lenth: 5MM Phase resistance:14.7ohms Step angle:18 degree Voltage: DC 12V Copper gear: 0.3 modulus/15 teeth Motor Weight: 12g Packing List: 1pcs x Motor.Lead: 2 phase 4 wire. Phase resistance:14.7ohms. Copper gear: 0.3 modulus/15 teeth. Step angle:18 degree. Output Shaft Lenth: 5MM. Motor Size: 14.5 11.8MM.