A gas spring, also known as a gas strut or gas lift, is a mechanical device that uses compressed nitrogen to provide a controlled force for lifting, lowering, or counterbalancing a load. Here's a basic overview of how a gas spring works : Basic Components: 

● Cylinder: The main body of the gas spring, usually a cylindrical tube, contains the compressed nitrogen. 

● Piston: Inside the cylinder, there is a piston that separates the gas from the oil (if used). The piston is connected to a rod. 

● Rod: The rod extends from the piston and is attached to the load or object being moved.