The Tie Down 86029 Roller Shafts are essential components for boat trailers, measuring 5/8" x 9-1/4" and featuring a zinc-plated finish for durability. Made in China by Tie Down, these roller shafts provide a reliable solution for securely tying down and transporting boats with trailers. Designed for durability and efficiency, these roller shafts are a practical choice for rigging and outfitting boat trailers for safe and secure travel on the water.