Features:Rugged construction and high load-bearing capacity: Made of strong new Pp compound and steel, each mover has excellent strength and robustness, each can withstand dynamic loads of up to 330 lbs, enough to last for a long time . Smooth, rounded edges increase safety and prevent you from injury.Anti-Slip Surface with Inter-locking Edges: The anti-slip rolling cart features multiple holes to keep valuables stable and prevent slipping while transporting. With inter-locking edges, multiple trolleys can be interconnected horizontally or vertically to mount and move larger items.Lightweight and Portable Design: The lightweight trolley allows you to carry it easily. Plus, built-in handles on the side and top add portability and help you take the dolly anywhere. The compact size allows the trolley to be stored in a corner or under a bed or in a closet, a great space saver.