Specification: Single Shaft Tt Motor Size: Refer To The Picture Above Operating Voltage: 3V12V Dc (Recommended Operating Voltage Of About 6 To 8V) Maximum Torque: 800Gf Cm Min (When It Is 3V) No-Load Speed: 1:48 Rpm:200(When It Is 4.5V) Load Current: 170Ma (When It Is 4.5V) This Mini Electric Motor Is A General Purpose Motor Work With Batteries Or Solar Cells Perfectly Great Replacement For The Rusty Or Damaged Dc Gear Motor On The Machine. Used For Electronic Fans Electronic Machine Cars Robots Arduino Projects Etc With Emc It Has Strong Anti-Interference Ability And Causes No Interference To Micro-Controller Package Included: 4 X Plastic Tire Wheels 4 X Dc Gear Motors 8 X M3*8 Screws 8 X M3*30 Screws 8 X M3 Nuts For Fixing 4 X Tt Dc Motor Support 8 X 200Mm Connector Wires Note: Small Parts Keep Them Far Away From Children Under 3 Years