2pcs 4mmx12mm Cell Phone Coreless Vibration Motor 900RPM 3V Product Name : Coreless Vibration Motor;Rated Voltage : 3V Speed : 900RPM;Body Size : 4 x 12mm / 0.16" x 0.47" (D*H) Total Length : 19mm/ 0.75";Main Color : Silver Tone Material : Metal;Net Weight : 3g Package : 2 x Coreless Vibration Motors