Innovative Interlocking Design : Thanks to the unique and innovative interlocking design, you can connect two or more flat trolleys together for your specific needs of moving larger items without tools or hardware. 360 Dolly Wheels : Four ageing resistance rubber dollies with 360 rotation top plate, easily transform to any direction that you want, enable you to spend little strength to move furniture safely with these furniture movers Durable Furniture Dolly : Plate dolly features a non-slip surface. It can hold up to 1200 lbs. Help you move furniture out of house for renovation or floor cleaning. Flexible Mobility :This furniture rolling dolly is equipped with 4 dual ball bearing wheels, it make transporting heavy items more stably and smoothly to any direction that you want. And the compact size allows it to be stored without taking up too much space.