I purchased this to move my refrigerator, but I didn't end up using it because the refrigerator already had casters. It has been opened, but it is unused. 【Product Details】 Expansion Range: 45.7~71.1cm, Load Capacity: 300kg, Height: 4cm, Weight: Approximately 0.6kg (per unit) *Please use the stoppers as temporary stops. They may not completely stop the unit depending on the weight and size. 【Mobile with Casters】 This washing machine stand has a total of 12 casters, preventing detachment during movement and providing stronger load-bearing capacity and excellent stability. With a height of 4cm, cleaning is easy and maintenance is simple. 【Non-slip & Vibration Reduction】 Non-slip mats are included on all four corners. While enhancing stability during movement, they also prevent direct contact with the washing machine, effectively preventing vibrations during operation. 【Easy to Use】 This washing machine stand is easy to load large appliances like washing machines without assembly. To ensure safety when stationary, lockable brakes are installed; press down to quickly stop. 【Solves Appliance Problems】: The mobile base is mainly used for the bottom of portable washing machines, washing machines, dryers, freezers, refrigerators, mini-refrigerators, or other household appliances. It's a solution to problems such as difficulty moving appliances, noise and vibration, dampness, rust and corrosion, electrical leakage, and inconvenient drainage.