This set of four 4-inch caster wheels is designed for heavy-duty applications. With a load capacity of 3000 lbs, these wheels are perfect for transporting heavy equipment. The wheels feature a brake system for added safety and control during operation. The casters are made from polyurethane and steel materials, ensuring durability and longevity. They come in a striking purple color that is sure to catch attention. The mounting type is plate mount, and the unit quantity is four. These casters are manufactured in China and are ideal for use in business and industrial settings.