We include mounting hardware with these Brake Line kits, which are intended to outfit the broadest range of trailer styles. Each of these kits includes hoses with Male ends, to be outfitted in the female fittings of your Actuator, Brake Drum Backing Plates, or Disc Brake Calipers. All connection fittings included in these kits have female ends as well, making assembly of these Brake hose kits simple and efficient. For Layout instructions, you can references the Brake Hose Diagram with each listing, showing the simple layout of these kits onto your boat trailer or land trailer. To improve the project of adding or replacing the hydraulic hoses on your boat trailer, we have pre assembled brake line kits listed below. These Hydraulic Brake Line kits are intended for use with Disc and Drum Brakes, for Leaf Spring or Torsion Axles. These are Kodiak Brand, DOT Approved flexible rubber hoses, that are rated at well above the possible working range of your single, tandem, or triple axle boat trailers brakes. We have determined very efficient standard lengths that will apply for both Single axle and Tandem Axle boat trailers. Additionally, these brake line kits with outfit your Land Trailer as well, if you are running drum, or disc brakes. If your trailer is using, or you plan to use, Electric Over Hydraulic, these brake line kits will also work perfectly for that brake system as well.