The AT Castor Kit enhances the mobility of your Imperial™ or Regal™ grill, making it easier to move across rough or uneven surfaces. This set of four industrial-grade swivel castor wheels replaces standard plate wheels for smooth, stable rolling. Designed to fit Imperial™ and Regal™ models with plate-style wheels. Not compatible with Commercial Series grills. Perfect for backyard cooks who need flexibility without sacrificing stability.