The standard chain length of the aluminum alloy hand holds the gourd is 1.5 meters, and its chain length supports customization. The driving force of the aluminum alloy hand pulls the gourd comes from the joystick handle. There are multiple gears that can be used for horizontal moving heavy objects, vertically lifting heavy objects, scattered pieces bundled cargo, tightening lines, welded pairs and other operation occasions It has strong applicable performance, strong carrying capacity, etc., but over time and the impact of the hanging environment, no matter how good the quality of the gourd is, some large and small faults are also prone to. All must be maintained regularly.