This lift pad can be used as a replacement if the pad on your Pro Eagle Jack becomes damaged. In some cases, it is possible to retrofit your other brand jack so that a Pro Eagle 8" or 15" extension will work but it will not fit all other brands. Other brands source their jacks from multiple manufactures and there is no consistency between the product even with the same part number. We offer no promises on the product fitting on your brand of jack. We offer no refunds on this product. Our extension will ONLY mate with THIS lift pad. It will NOT fit on any other brand. The inside hole diameter is 1"