CURT Lippert 813748 Power Stance Electric Trailer Tongue Jack, 3,500 lbs Model 813748 Tank/Box Combo They are strong but lightweight

They are strong but lightweight compared to steel alternatives

The chains help attach the spring bars to the trailer

CamLocker Side Mount Tool Boxes are constructed from

A replacement short arm is also available

CURT Lippert 813748 Power Stance Electric Trailer Tongue Jack, 3,500 lbs Model 813748 Tank/Box Combo They are strong but lightweightCURT CURT Lippert 813748 Power Stance Electric Trailer Tongue Jack, 3,500 lbs Model 813748 Delivering on power, versatility and durability like never before, the Power Stance tongue jack by Lippert was engineered with all of the same great features as our original power tongue jack and then some. This trailer jack can be operated with an industry first 2 way to 7 way plug powering system. The Power Swap Auxiliary Cord can be added to any Power Stance,