Adjustable Size: The appliance cart is expandable from 44.5cm to 71cm to accommodate different furniture sizes. There is a knob at the bottom of this washing machine rack so you can adjust the length to hold items as needed. Durable and Sturdy: The furniture caddy has a heavy gauge steel frame with powder coating which is extremely durable. The appliance carts can support up to 300 kg. It is suitable for heavy furniture and appliances such as washing machines, dryers, refrigerators, sofas, cupboards, etc. Improved roller: each set of washing machine support washing is equipped with 24 wheels, increasing the contact area between the wheels and the ground. Makes you more effort and smoother when moving things. Brake Bases: The moving roller comes with a non-slip mat to make furniture more stable when moving. One end of the roller has a locking brake which improves the stability and safety of the machine base when not in use. Daily use: This mobile washing machine base measures 4cm high, which can keep the bottom of furniture dry and ventilated to prevent corrosion, extending the life of your furniture. Also easy to move, making daily cleaning convenient and efficient.