This heavy-duty caster set is constructed from high-quality cast iron and galvanized steel wheels and yokes, providing superior durability and extended use. The 6-inch diameter wheels are 2 inches wide and have a load capacity of up to 1250lbs per caster, making them suitable for various handling applications. These steel casters have a swivel design and two ball bearings for smooth rotation and shock absorption, making them easy to install and use. They are versatile and can be used for pallet trucks, inventory carts, trolleys, platform carts, furniture, luggage carts, workbenches, and more. The product comes with a quality assurance guarantee and customer support to address any questions or issues with the caster wheels. With their strong load-bearing capacity, abrasion resistance, and shock absorption, these heavy-duty casters are a reliable and essential item for any home or workplace.