Modulaufbau 2 Airbrushhalter mit Schlauch

I purchased this knowing I'll be getting a second airbrush at some point. When I received my order and tested it out, I noticed I was missing the closing screw to close off one of the holder's bottom holes. Since this holder attaches to your compressor and the holder to the airbrush, without that part, the air is being released through the hole rather than to the connected airbrush through the single hose already provided. It's a good sturdy holder regardless unlike other holders that are mounted to the side of the desk, this one sits on the desktop. The plug is small part and it was missed by SprayGunner when they put my order together. SprayGunner customer service is true to form, and they sent out the missing piece ASAP after letting them know, I'm just waiting for it now so I can use the holder fully.