uxcell DC 12V 50 RPM 4mm Dia Permanent Speed Reducing Geared Box Motor Product Name : DC Geared Motor;Rated Voltage : 12VDC;Output Speed : 50RPM Shaft Size : 4 x 11mm/ 0.15" x 0.43"(D*H);Gearbox Part Diameter : 25mm/ 1" Motor Part Diameter : 24mm/ 0.94";Total Length(Approx.) : 50mm/ 2" Material : Metal, Electronic Parts;Color : As Picture Shown Weight : 86g;Package Content : 1 x DC Geared Motor