1.5-4.5V 50000RPM 1mm Dia Shaft DC Non-core Motor for RC Helicopter Country of Manufacture: CHINA; Material: Metal; Net Weight: 4g Package Content: 1 x DC Coreless Motor; Brand: Assisi; Model: 716 Main Color: Silver Tone; Body Size: 16.5 x 7mm/0.65" x 0.28"(L*D); Shaft Size: 1 x 5mm(D*L) Wire Length: 5cm/2"; Total Length: 22mm/0.87" Rotary Speed: 50000RPM; Rated Voltage: DC 1.5-4.5V