The Heavy Duty 150 x 50 MM / 6 x 2 Inch I-Section Wheel with Ball Bearing is a large, robust caster wheel featuring an I-beam tread for exceptional strength and load distribution. Designed for heavy-duty industrial applications like large carts, racks, or machinery, it delivers superior stability and mobility in warehouses, manufacturing, or high-traffic environments. Ball bearings ensure smooth, efficient rolling, and it's typically sold individually for flexible installations.