1. Ergonomic Design This device is designed to be worn on the weaker leg to compensate for muscle strength differences by adapting to the body's rhythm. It enables efficient and harmonious movements with the assistance of natural gravity. 2. Natural Energy Storage Device Experience sustainable natural energy with this device featuring adjustable intensity levels and a clockwise twist function to boost energy. It accommodates various leg heights and waist circumferences under 95 cm, eliminating the need for recharging. 3. Simplified Stair Navigation This design enhances stair navigation, improving safety and reducing strain for individuals with knee and hip pain. It supports walking recovery and provides comfort during activities such as walking, resuming training, sitting, and resting. 4. Multifunctional Support Ideal for physical and occupational therapists, as well as those recovering from injuries or surgeries, this device promotes leg stretching and enables easier maneuvering on beds, sofas, or wheelchairs, facilitating smooth transitions. Use scenarios Home rehabilitation after knee or hip injury or surgery: worn on the weaker leg to assist daily activities, improve stability on stairs, and reduce fatigue during walking and transitions between positions. Therapy and rehabilitation sessions: used in physical or occupational therapy to support leg stretching and to assist patients during bedtochair transfers and other routine maneuvers. Daily living support: helps individuals with unilateral weakness to maneuver more easily around beds, sofas, or wheelchairs, enhancing comfort during resting, sitting, and moving activities.