The Time Furoshiki (タイムふろしき Taimu Furoshiki), also known as Time Cloth or Time Kerchief in the English dub, is a recurring gadget in the series that has the ability to advance or reverse time depending on which two different colored sides are used. It was first used by Nobita to turn old appliances into new appliances to make money. But its uses extend to many other things, such as converting an object back to its starting material, repairing broken machinery, aging or making people younger, and restoring millions-of-years old fossils. When picked up, of course, the holder will not age, which means the cloth is only activated upon covering an item, hence why it can float over objects with no user and still change the time of objects.