DC motors models RS-350, Carbon brush dc motor, Cylinder, Diameter 25.8mm, length 32mm, shaft 2mm, fixing screw 2-M2.5mm. Operating voltage: 3~24V, At no load Speed 3,000~15,000 r.p.m, Output about 0.5~10W. fit for hair dryer, massager, gear head,  annunciator, etc.