A plastic walker collapsible

I am looking for someone to design a plastic walker that is collapsible it is large in size and has the additional feature of being foldable. The walker needs to be made of plastic so it is light and durable. It should also be able to collapse for easy storage or transport. The adjustable height is preferred so it can fit people of all different sizes and heights. The design should be user friendly and safe to use. If you think you can create a plastic walker that is collapsible that meets my needs, please contact me. I look forward to hearing from you!