uxcell DC 1.5-4.5V 50000RPM 1mm Dia Shaft Coreless Motor for RC Helicopter Body Size: 16.5 x 7mm/0.65" x 0.28"(L*D); Shaft Size: 1 x 6mm/0.04" x 0.24"(D*L); Wire Length: 8cm/3.1" Total Length: 25mm/1"; Rotary Speed: 50000RPM; Rated Voltage: DC 1.5-4.5V Country of Manufacture: CHINA; Material: Metal Net Weight: 3g; Package Content: 1 x Coreless Motor Model: 716; Main Color: Silver Tone