Square&Round Tube Bottle Jack Axle Adapter Lifting Saddle, Bottle Style Jack Floor Jack Axle Saddle. Square&Round Axle Tube: Fits for 2inch, 3inch and 4inch Vehicle/Trucks Axle Tube, and square tube shafts within 2inch. The Bottle Jack Axle Adapter sits on any bottle/floor/hydraulic jack with a 1.5inch lifting platform or smaller. Portable & Easy to carry: The adapter is compact and portable, and no need to take up any space, so it is easy to fit in trunk/repair kit/tool box. Upgraded Stable Bottle Jack Adapter: Our Bottle Jack Axle Saddle Adapter has been upgraded by lengthening the connection at the bottom of the sleeve, making it more stable and less prone to tilting during use. Safety Bottle Jack Adapter: The Floor Jack Axle Adapter Lifting Saddle is must have when using a Bottle Jack on car/RV/trailer/camper/truck/ATV/tractor Axles. Using the RV Trailer Jack Axle Adapter on the rear axle tube allows for a sturdier surface contact point, secures the bottle jack from slipping off the axle tube, makes jacking up car much safer. Save more time and effort: This floor jack axle cradle adapter distributes the jacking contact area across the most surface area of the axle housing, makes getting the front end up on jack stands quick and easy, makes lift vehicles, tire changes and repair a breeze. Warm Tips: Pls make sure measure your jack axle and bottle jack lifting pad to fit our RV bottle jack axle cradle before ordering. MUST ensure the bottle jack axle adapter is firmly placed in place before lifting, Placed flat and flush with the saddle, and pay attention to your own safety. Note:Due to different batches, there are some differences between the physical objects and the pictures, which will not affect the normal use. Colour:Black Material:carbon steel Package Contents: 1 * Bottle Jack Adapter Axle Saddle Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.