Features: Heavy duty caster base with 360 degree rotating wheels provides stable load bearing, crafted from high strength carbon steel for enhanced durability and deformation resistance compared to plastic alternatives. Features a reinforced 360 degree rotation systems and nonslip rubber pads, ensuring smooth multidirectional movement and secure grip on polished surfaces during transportation. Designed for warehouse staff, industrial workers, and homeowners requiring efficient heavy load mobility solution across workshops, storage facilities, or residential spaces. Optimizes narrow space navigation in garages, production floors, or retail stockrooms while maintaining stability on slippery tiles or concrete surfaces. Rust proof coated surfaces withstands outdoor humidity and repeated use, paired with tool less snapping lock assembly for fast deployment in time sensitive logistics operations. Specifications: Component: Carbon steel Size:Approx.40cm/15.74inch Size:Approx.45cm/17.71inch Size:Approx.35cm/13.77inch Package Includes: 1 Set Mobile Trolley Base note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.