CHANCS Synchronous Motor TYC-40 AC 12V 5RPM Shaft Length 4.6cm for Fiber Optic Christmas Ornament Working Voltage: AC 12V (NOT DC 12V) Speed: 5r/min Screw Thread Length: 5mm,M3 Shaft Length: 45mm;Shaft Diameter: 4.5mm GuaranteeAny quanlity problem,we guarantee 100% unconditional refund or resend service.