The 4-Tier Smart Cart Trolley Shelf Rack Organizer Is A Versatile And Practical Storage Solution Made Of High-Quality Metal With Four Sturdy Shelves That Can Support A Maximum Weight Of 20kg Per Shelf. It Features Four Smooth-Rolling Wheels, Two Of Which Have Locking Mechanisms, Making It Easy To Move And Secure In Place. The Shelves Are Adjustable To Accommodate Items Of Different Sizes, And The Cart's Open Design Makes It Easy To Access And Find What You Need. 

• Durable construction: The cart is made of high-quality metal with a durable powder-coated finish, making it sturdy and long-lasting.
• Four adjustable shelves: The cart has four sturdy shelves that can be adjusted to accommodate items of different sizes and shapes.
• Maximum weight capacity: Each shelf can support a maximum weight of 20kg, providing ample storage space for heavy items. 
• Smooth-rolling wheels: The cart features four smooth-rolling wheels that make it easy to move from room to room.
• Locking mechanisms: Two of the wheels have locking mechanisms that keep the cart securely in place when it is stationary.
• Compact size: The cart's compact size and slim design make it easy to store in small spaces when not in use.
• Easy assembly: The cart is easy to assemble with no tools required.
• Open design: The cart's open design makes it easy to access and find what you need.