1. After working for 2000times under the pressure of 3500psi, oil spill less than 3g.
2. Aluminum alloy head and electroplate.
3. Press your hand air vent, then can easy and quickly exhaust air.
4. 1.2mm painted gray color, seamless stell pipe
5. Head and body ladder-shaped spiral rotate easily, sturdy and durable.
6. The end cap can open, easy to clean.