Specification: 105×85×2125px; Parameters: the main body is shaped steel surface electrostatic spraying. The table is a multi-layer board with a thickness of 50px. The area of the sand grinding board is 106×1925px. The Angle is adjusted (0 ~ 50°). The accessories are made of wood, the surface of which is painted with 5°, and the lifting rod is plated with chromium for patients' upper limb coordination training and range of motion training