12V Power-in and freewheel-out (TW4000), power-in power-out and freewheel-out (TW9000) operation with positive mechanical brake. Clutch control knob engages gears or releases load in a controlled freewheel mode. For boat trailers and other horizontal pulling applications. 25′ lanyard for remote operation is included. Equipped with 20′ x 2″ polyester strap and hook.