10 inch Freebacking Brake Shoe Lining Kit adds years of life to your trailer by replacing your worn out, rusty brakes with these easy-to-install, surge-activated, drum brakes. They are built to withstand the marine environment and are Galv-X coated, with stainless steel springs and fasteners. The front shoe design backs the shoe away from the drum to allow free wheel when backing. Ideal for conditions where you must back uphill or in soft sand. Each kit contains enough parts to do 1 axle. 2 Year Limited Warranty. Replaces any 1-1/2 inch, 2 inch, or 4 inch W x 10 inch in diameter trailer brake system.