we are professional electrice jack for RV,thailer ,special car.Good tecnole,jockey wheel 1.trailr jack, Lifting range: 430mm Lifting power: ≥600kg2.durable powder coat finish 3.with a jockey wheel: Φ5``4.with manual handle5.length of the jack: 780mmdiameter of the tube: 55mm  trailer jack,trailer part,jockey wheel

Wheel trailer jack HH-2002