This is the Heli-Max Heli Super Start Electric Powered Helicopter Engine Starter. FEATURES: Fast efficient starting for most .30-.90 size helicopters with a one- way start shaft Dual 540 size motors for plenty of starting power Steel gear drive and ball bearings for smooth operation Dust and impact resistant composite case Two start switches for use in either horizontal or vertical position- rocker switch on top with safety guard and push button switch below handle Ninety day limited warranty INCLUDES: One Heli-Max Heli Super Start with starter cone and rubber insert REQUIRES: Power pack DTXP4600 COMMENTS: A One-Way Starter Shaft is required for some heli models jxs 10/14/05 ir/jxs