This upperlimb training aid is built with PU leather for comfort, durability, and breathability. It supports hands, wrists, forearms, shoulders, and elbows during rehabilitation exercises and provides gentle shock absorption to reduce fatigue during longer sessions. Material and comfort: quality PU leather that is soft, wearresistant and breathable; comfortable against the skin with cushioned feel during training. Smooth mobility: four doublebearing wheels with 360degree rotation; quiet operation; easy to move on most desks and training spaces. Upperlimb training support: assists movements of the hands, shoulders and elbows; suitable for strokerelated weakness, insufficient muscle strength, nerve damage, and shoulderhand syndrome. Front and back fixation: elastic band with adjustable slack for a comfortable fit; arms can widen without tightening; double Velcro fasteners secure wrists and forearms for stable training. Fit and compatibility: adjustable width to accommodate different arm sizes; designed to work with most desks and training setups. Two to three practical use scenarios: Home rehabilitation: daily or severaltimesweekly sessions focusing on improving elbow and shoulder range of motion and gentle strengthening. Clinic or gym warmup: uses as an assistive tool during therapeutic exercises to prepare the upper limb for more intensive training. Shoulderhand syndrome or nerve injury management: supports passive and guided movements to maintain mobility and reduce stiffness.