This is a 26-inch black painted 3-leaf double-eye trailer leaf spring, rated at 1,500 lbs per spring or 3,000 lbs per pair. Designed for 3,500 lb axles with 5-lug hubs, it fits both square and round tube axle designs, depending on the U-bolt kit used for mounting. These versatile springs are ideal for boat trailers, campers, enclosed trailers, or any trailer needing a replacement spring of this size. Each spring includes pre-installed 9/16" bushings