Used NITRO-COMP V1. It appears to be in good condition with little sign of use. Operation has been confirmed. There is some dirt on the inside of the cup in the 13th photo, but according to the manual, it doesn't seem to be a problem. The screw head in the 14th photo is stripped. I received it like this, so I don't know if it was like that from the beginning. The following is AI: High-performance air system NITRO-COMP V1, ideal for precision work with a pressure gauge. - Model Name: NITRO-COMP V1 - Brand: PROFIX - Accessories: Instruction manual, hose, connection parts - Function: High-performance air system - Features: With pressure gauge Please check my profile and understand the terms before purchasing.