It's finally here: The Back to the Future Hoverboard (well nearly)!!
Firstly, for it to work you'll need the floor to be made of metal, so unless you can convince your local council to replace all its pavements, you won't be flying anywhere.
Then there's the price.
The Hendo Hoverboard will set you back $10,000 (£6,000), so it's clearly a rich boy's toy.
But with this invention now working for real, maybe the Back to the Future concept is closer than ever to becoming a reality.