Stair carts
Why has this not become a worldwide thing? How many times have we seen delivery men walk up and down stairs carrying huge boxes that probably weigh a ton and are breaking their backs? It doesn’t have to be like that and the Japanese have proved it with this crazy invention.
This weird cart has a system of wheels and tracks on the bottom that make it very easy to move heavy boxes or objects up or down stairs. We think that whoever came up with this is just a genius and deserves to sell their innovative cart all around the world.