Robust steel construction: The strut expansion hub is built from high-quality steel for high strength and wear resistance. It is wear-resistant and scratch-proof, designed for long service life. Easy to use: The axle knuckle spreader keeps the suspension opened from the wheel hub and is specifically designed for removing and installing the suspension strut while the wheel hub remains on the vehicle. It also includes a wrench for added convenience. Double-ended function: The double-ended design works with larger top hubs and lower split ball joint hubs. Both the larger upper hub and the lower ball joints can be separated easily without risk of damaging the vehicle. Wide compatibility: Extremely versatile and suitable for a variety of vehicles and models. Check compatibility with your model before purchasing to ensure proper fit. Use scenarios: - Replacing suspension struts on a vehicle with the wheel hub still in place. - Safely separating larger top hubs and lower split ball joints during suspension work. - Servicing a wide range of vehicles and models thanks to the tool’s double-ended design.