A Hoverboar (or hover board) is a futuristic hovering deck, resembling a skateboard without wheels or trucks. The name is a portmanteau of the words "hover" and "skateboard". They were invented by writers Bob Gale and Robert Zemeckis and prominently featured in their box office hit films Back to the Future Part II in 1989, and Back to the Future Part III in 1990, where subsequent to the films' success, toy company Mattel made a product branded Hoverboard. Attempts to produce the experience of a Hoverboard with available technology have involved hovercraft (or air-cushion) vehicles.