This heavy-duty lockable 3-tier black metal rolling tool cart is a efficient storage solution for mechanics, garages, workshops and warehouses. Made of high-quality metal, it supports up to 440 lbs (about 200 kg), suitable for heavy tools like wrenches and power tools; 3 open tiers enable easy access and organized tool storage.It has a heavy-duty locking system to prevent tool falling and loss; 4 wear-resistant universal wheels ensure smooth, anti-slip movement, even on rough floors. The top platform works as a temporary workbench, realizing "storage + operation" integration, ideal for mechanical maintenance and warehouse management.