Fulton XP15L 0101 Trailer Jack is designed for use with marine and utility trailers. Fulton brand tongue jacks are time-tested and application-proven. Features Z-MAX 600 Superior Plating corrosion protection. Bolt-on includes all necessary mounting hardware and 1/2" pull the pin. Sturdy 8" spoked wheel. The Fulton brand bolt-thru swivel mount uses 3-D formed heavy-gauge steel stampings and a proprietary bushing material for a mount with minimal deflection and maximum support. Mount fits up to a 3" x 5" trailer frame.