The OTH Flagpole Truck available at United States Flag Store is made of cast aluminum and includes a nylon pulley on 1/4" stainless steel axle. Designed to slip over the top of the flagpole, this stationary truck and pulley is then secured by stainless steel set screws. Designed for residential flagpoles that are 2 inches in diameter, the flagpole truck's top can accommodate an ornament with a spindle. It is secured to the truck with a stainless-steel pan head screw. Accepts spindle threading of 1/2" - 13NC on ornaments. The maximum diameter of the halyard is 5/16". Made in the U.S.A., the flagpole truck will ship within two business days when you order from United States Flag Store.