The bROK 1,000-lbs marine jack is the perfect replacement jack for your marine craft. It's zinc and chrome plating are ideally suited for the marine environment and the swivel mounting plate quickly allows the jack to swing up for storage or down for use. The caster designed poly wheel makes easy work of maneuvering your trailer into position for connection or storage. Easy convenient side wind handle provides easy access and use and the included mounting makes operation a snap.