1. 6600 lbs Capacity: With a maximum load capacity of up to 6600 lbs when using 4 wheels, the leveling feet are reinforced to enhance overall strength and durability, making them ideal for heavyduty equipment. Featuring a robust structure and flexible functionality. 2. 75 mm Nylon Wheel: The 75 mm wide nylon wheel ensures a smooth and stable rolling experience with full 360degree rotation, allowing effortless movement across various surfaces with confidence. 3. Height Adjustment: The leveling rollers now include a ratchet arm for effortless height adjustment. This upgraded design is ergonomically optimized to improve efficiency and minimize effort when adjusting the height of the retractable leveling machine roller. 4. Versatile Application: This leveling roller with a base supports height adjustment and is suitable for both industrial and household use, from heavy furniture to appliances such as workbenches, shelves, and mechanical cabinets.