Zinc plated steel construction for corrosion resistance. Trailer jack fits trailer tongue up to 3″ x 5″. Heavy duty fixed mount bracket. Provides 30″ of lift from the bottom of mounting bracket to the foot plate. 15″ Travel distance, plus 13.5″ with Drop Leg. Retracted height 6.97″, extended height 21.97″. Lift 21.97″. Quick release pin for easy foot plate adjustments. 6 hole design reduces crank time and effort. Grease port for easy lubrication. Power grip handle. Zinc plated mounting hardware included.