Features MUTI-VEHICLE APPLICATION:61850 Truck Hub Seal Installer Kit fits for the most popular sizes seal for class 7 and class 8 over the road trucks and trailers and works on some medium duty trucks. ULTRA-STRONG CRAFTSMANSHIP:These tools are crafted from premium aluminum alloy material, manufactured from CNC process, anti-deformation, corrosion resistance, wear resistance, durable and reliable. NO DAMAGE INSTALLATION:Designed to hold the seals, making installation easier on or off the vehicle and help to prevent possible damage to expensive seal. The handle extensions is for extra reach for driving seals on hubs with deep brake drums without removing the drums. .