2Pcs RC Quadcopter DC3.7V 40000RPM Coreless Micro Motor w 2-blade Fan Product Name : DC Coreless Motor;Rated Voltage : DC 3.7V;No Loading Current : 100mA Loading Current : 1.6A;Speed : 40000RPM;Shaft Size : 1 x 7mm/ 0.04" x 0.27"(D*L) Body Size : 7 x 16mm/ 0.27" x 0.63" (D*H);Propeller Size : 46 x 9mm/1.8" x 0.35"(L*W);Wire Length : 50mm/2.0" Main Color : Silver Tone, Black, White;Main Material : Metal Net Weight : 6g;Package : 1pair x DC Coreless Motor