The Pallet Jockeys are simple devices that allows drivers and warehouse personnel to efficiently unload sideways pallets with their "Walkie" powered pallet trucks without wasting valuable time and resources. Maximum capacity is 4,000 pounds. The Non-Adjustable (PJ-1005) unit is ideal for warehouse distribution centers that have one particular electric pallet truck model. To use, simply place the Pallet Jockey hooks into the fork wheel openings. Fits popular sizes of walkie trucks (verify your fork width and end of fork dimensions) and our electric pallet truck, model EPT-2547-30. The Adjustable (PJ-2001) unit is designed to fit various types of electric pallet jacks. To use, simply loosen wing bolts and slide adjustable brackets to proper slot, then tighten wing bolts.