VEVOR Heavy Duty Appliance Rollers, 330 lbs Load Capacity, Furniture Dolly Mobile Roller with Adjustable Base for Washer and Dryer, Extendable Appliance Rollers Easily Move Washing Machines, Gray

Yes, the VEVOR Heavy Duty Appliance Rollers can be left under your appliances permanently. In fact, they are specifically designed for continuous, long-term use.