No matter how well they are designed and built, all mechanical parts will wear down or break eventually. And the parts of your braking system that needs replacing the most often are the brake pads. That's because they necessarily rub against another part with considerable force. And did you know that applying the brakes when they're wet wears them out even faster than when they're dry? Because of that, you might need to replace the brake pads on your marine trailer even more often than you need to replace your vehicle's brake pads. These pads attach to the calipers with a backing that's made of stainless steel for better heat dissipation, which helps the pads last longer. They come in a set of 4, so you can replace the pads on two wheels at the same time, to keep your trailer in balance when you slow down. They are compatible with the types of calipers listed below.