This optional Jockey Wheel Clamp lets you detach the Mark II Hydraulic Jack and use it as a jockey wheel instead of having it permanently fixed to your caravans towing frame. It can be either welded or secured with heavy duty bolts to the A-Frame of your caravan. This multipurpose wheel clamp from Trail-A-Mate suits a 60mm jack or jockey wheel. Having the option to unclip and use your jack elsewhere can really help if you need to change a back tire or if you just want to leave your caravan at home and take the boat out. We highly recommend a Trail-A-Mate wheel clamp lock in conjunction with this product, as it will keep your expensive gear safe. Simply remove the handle and tighten in the anti-theft lock. Grab a Wheel Clamp today and have access to a more portable Mark II jack and jockey wheel.