Color:Siler+Black;Voltage:DC 3V;Rated Speed:15000 RPM Motor Body Diameter:27mm/1.06\";Mounting Hole Distance(center to center):15mm/0.59\" Shaft Size:10x2.0mm/0.39\"x0.08\"(L*D);Motor Body Length;38mm/1.46\" Great fun Motor,perfect for mini fan,electric toys and science experiments etc. Will work with many power sources batteries and solar cells work perfectly