In places involving the transportation of packaged goods, such as industrial units, warehouses and retail spaces, 4 Side Heavy Duty is an indispensable product. 4 Side Heavy Duty can be used to transfer goods or parcels safely. The garbage filling side of the roll cage ensures that if the package is displaced due to sudden jerk or operation slip, the garbage will be controlled. The low height of the sturdy base allows for a smooth loading of the cargo. The two panel door can stack the goods to the full height of the roll cage, and the embedded bolts provide additional security for the system. These nesting roller cages are easy to store when not in use, and only a small space is needed for stacking. These stabilization systems have powerful combined systems that can carry loads up to 500kg. The combination of fixed casters and rotary casters can easily handle the roll cage at any time, whether empty or full.