Retractable vehicle step: Step out with confidence! Reduces shock injury to personnel by decreasing the distance from the ground to the step surface. Powered by a single 12-volt electric actuator. Includes a patent pending in-line lock mechanism to hold the extended step rigidly in place. Step may be wired into door interlock system to automatically extend with door opening and retract with door closing. Designed specifically for use on fire and emergency vehicles. May be retrofitted onto existing apparatus. Cast aluminum step plate 24" wide x 10-3/4"deep with a non-skid surface to provide traction and safety.