OPNBar has created a version 4 5th Wheel Release Hook Extension Pole, which is compatible with OPNBar Version 4.5. This listing only comes with the 5th Wheel Release Hook and Extension Pole (Length 42") The Fifth Wheel Pull Hook assists the driver in releasing the fifth wheel which can cause neck, shoulder and back injury as well as, damaging your clothes with grease, oil, and road grime. This pull hook can help eliminate these problems. This tool also has other functions. It also includes a bar extension that hooks up to our Version 4 Door Latch Handle Extender, and becomes a safety leverage bar to assist the driver operator in opening and closing shipping container doors. Great for opening shipping and cargo containers that are rusted or iced over! OPNBar Version 4 (1 Pack) Large Mouth Leverage Bar with Extension Pole (5th Wheel Release optional) Leverage Bar for Shipping Container Doors. The mouth accommodates shipping container handles that have a rubber sleeve attached and is extended deeper for better grip around the container handle. In addition, it features more bend around the mouth for more universal compatibility, and extra gripping around the center and is compatible with our future extensions. Did you know that trucking, cargo and insurance companies lose billions a year due to operator injury? Did you know 50% of all trucking injuries are sprains/strains? We introduce a multi-purpose trucker tool, a shipping container safety hand leverage tool, tire thumper, and 5th wheel hitch pull hook, container seal breaker, cam pin compressor, T Handle toolbox latch tool, and primarily designed for opening and closing truck trailers and shipping containers with the safety of the truck driver, operator, and worker foremost in mind. The Tire Thumper function assists the driver operator in a quick method of evaluating properly inflated tires for truck driver safety. Properly inflated tires make a loud, sharp thud. Poorly inflated tires make a dull thud. The Fifth Wheel Release Hook assists the driver in releasing the fifth wheel which can cause neck, shoulder and back injury as well as, damaging your clothes with grease, oil, and road grime. This pull hook will eliminate these problems. For more information or for wholesale orders, visit opnbar.com