Designer Heikki Juvonen came up with a concept walker design to solve this problem while also including some sleek design. His Freeroll walker has many of the same characteristics of a rolling-walker with the big wheels and seat.
A major goal of the new design is to offer a fully valuable bike with a great ability to be folded and stored in small spaces (cases, car trunks etc. A main feature of the design is the circular frame. It allows unusual folding.