The invention of a new multifunctional mobility aid focuses on designing and manufacturing a mechanical rehabilitation device that offers the highest level of service for patients with mobility challenges. This innovative device can be folded into a regular stool and transformed into various forms, including a wheelchair, walker, patient transport trolley (stretcher), dining chair, bed, toilet, and comfortable chair. One of the key features of this device is that it has no removable parts; all components are embedded within the device, utilizing innovative mechanisms. Additionally, because it does not use any electronic equipment, the device is washable. For navigating stairs, the device allows patients to move without the use of wheels, thanks to telescopic arms that are stored under the seat. It can also be converted into a stretcher or a fixed bed. The dining chair component is conveniently stored inside the right arm of the wheelchair. When folded, the dimensions of this invention are 55 cm × 55 cm × 65 cm.