Features: Adjustable: Double-row design simple in structure and free of installation. The length can be easily extended from 50-75cm which gives you enough freedom to apply this washing machine dolly to different sized furniture like refrigerator washing machine washer and dryer mini fridge etc. Smooth: Increased contact surface between moving wheels and floor enabling you to spend little strength moving the refrigerator or washer and dryer smoothly. Daily Use: The height of the mobile washing machine base is 3.6cm providing firm support while meeting your daily use. Non-slip Washer Stand: One end of the washing machine stands with a lock brake effective to decrease and prevent the washing machine from slipping or shaking upgrading the washing machine stand's stability and safety. After-sale Service: If you confront any problems about our products please feel free to contact us we are ready to help. We will solve your problems as soon as possible. Specification: Type: Reusable Height: 3.6cm Extended Length: 75cm Shrinkage Length: 50cm Width: 6cm Notes: 1. Due to the lighting effects and shooting angles there is a color difference in the product please understand. 2. Due to manual measurement there is a tolerance in the product size. includes: 2 * Mobile Roller