The ultimate trailer jack - now with a Lifetime Warranty.Constructed entirely of polished stainless steel for the very best corrosion resistance and looks on the market. Mighty wheel 1500lb model has a 4" wide x 8" tall wheel which helps prevent sinking into sand and mud and allows for easier travel on rough surfaces. Dual locking pins for added strength. Fits on tongues up to 3" x 5". Built-in grease fitting to keep gears and shaft well lubed for long lasting performance. Power-Grip ergonomic handle and galvanized arm. All stainless steel components inside and out.Lifetime Warranty.