Please see circled item in pic. That piece is not included in the package! This high-pressure air compressor is perfect for filling up your PCP airgun or rifle. With a 3-stage compression mode and a filling speed of 0.5L in 20 minutes, this compressor is efficient and reliable. It comes with a power supply of 12V DC and a charging rate of 16 minutes for a 0.45-liter tank. The compressor is CE certified and has an oil-water filter that ensures the air is clean and free of contaminants. It has a net weight of 5.45KG/12lb and a compact design of 231713CM/9″6.7″5. The compressor has a voltage of 110V and a power of 250W. It also features a cool blue color, fan air cooling, and a manually shut-off switch.