1. Easy to Use Close the coil spring compressor until it touches the center rod, then insert the compressor into the coil spring. Use the compressor to disassemble or install the spring, and release the compression only when the spring is set for installation. The pressure spring contains significant stored energy and must be handled and decompressed carefully. 2. **Durable**: Made of steel material, wearresistant, sturdy, and longlasting. The oxidation coating on the components resists rust, and the surface of each part is smooth, ensuring easy use under compression. 3. **Functionality**: Includes 5 adapters of different sizes, suitable for various spring diameters on most cylinder heads. It allows you to properly mount the spring and makes compression easier. 4. **CClamp Jaw**: Strong and durable. Made of 1.7mm thick, heattreated steel with black oxide treatment, resistant to bending and deformation during compression. The two ends of the Cclamp are aligned in a straight standard line, preventing slippage during use.