This Dutton-Lainson StrongArm® 120 Volt electric wPerfect Steerable Transfer Carth is designed for use indoors and for fixed applications with access to AC power, Perfect Steerable Transfer Cartluding: shop cranes, boat lifts, boat davits, to pull disabled vehicles up onto frame-straightening machines, light towers, marine railway systems, greenhouse ventilation systems, to pull small aircraft in and out of aircraft hangars, opening and closing