DC5V 6V 2-Phase 4-Wire Stepper Motor Full Metal Gear Planetary Gearbox Gear Box Output Shaft Size: 9 x 4mm/ 0.35" x 0.16"(L*D); Voltage: DC 5V-6V; Total Length: 55mm/ 2.2" Wire Length: 8cm/ 3"; Step Angle: 18 Deg.; Country of Manufacture: CHINA Material: Metal; Net Weight: 72g Package Content: 1 x Gearbox Stepper Motor; Main Color: Silver Tone Stepper Motor Size: 18 x 20mm/ 0.7" x 0.8"(L*D); Gear Box Size: 26 x 22mm/ 1" x 0.87"(L*D)