Description: 【Material】: Made from premium aluminum alloy, this axle saddle is both lightweight and sturdy, capable of supporting axles with diameters of 3 inches and 4 inches 【Versatile Use】: This convenient axle saddle can be directly installed on your hydraulic bottle jack or floor jack, securing the axle tube when you lift it. It's univercial with any bottle jack that has a 1.5-inch or smaller lifting station 【Easy to Use】: While jack axle adapter lifting base may fit most 12-ton bottle jacks, it can also be used with floor jacks by simply placing it inside cup 【Function】: Practical construction provides more cushion and crush resistance when lifting your car. No more damage to pinch welds, frame rails and coated chassis parts 【Curved Design】: Bottle jack adopts curved design for spreading the pressure over a wider area to provide more cushion and crush resistance Specification: Material:Aluminum Alloy Size Chart: 5.15cmx6.35cm/2.03inchx2.50inch Package Includes: 1 Jack Axle Adapter Lifting Base Note: Please allow slightly errors 1-2cm differences due to manual measurement.