ITEM NAME:5-500RPM DC 3-24V High Torque Gear Box Electric Speed Reduce Motor D9J6 5-500RPM DC 3-24V High Torque Gear Box Electric Speed Reduce Motor D9J6 Product Name : DC Geared Motor;Rated Voltage : DC 3-24V;Output Speed : 5-500RPM Mounting Screw Hole Diameter : 2mm/0.08";Gearbox Size : 20 x 17mm/0.8" x 0.7"(D*H) Shaft Size : 4 x 7mm/ 0.16" x 0.3"(D*L);Body Lenght : 49mm/ 1.9" Main Color : Silver Tone Material : Metal Net Weight : 52g Package : 1 x DC Geared Speed Reduce Motor 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.