Mini Micro N20 Gear Motor DC 3V-6V Slow Speed Full Metal Gearbox DIY Robot Car Specification: Voltage: DC 3V-6V When the power supply is 3V, Current: 0.04A, No-load Speed: 52RPM When the power supply is 6V, Current: 0.04A, No-load Speed: 104RPM Motor Shaft Diameter: 3mm (D-shaped 2.5mm) Motor Shaft Length: 9mm Length: approx. 8-14cm Size: 24 x12 x10mm (1inch 25.4mm) Please Note: Light shooting and different displays may causethe color of the item in the picture a little different from the real thing.The measurement allowed error is+ / -1-3cm.We highly appreciate all custome rsopinions to improvethe selling, also if anything you unsatisfied, please contact us for probable best solution. Thank you! Package: 6pcs GA12-N20 DC 3V-6V Mini N20 All Metal Gear Wheel Gear Motor Slow Speed Micro Reduction Motor