This low cost, compact and portable unit operates utilizing a minimal amount of compressed air. It comes with a magnetic stand to “plug into position” on any magnet accepting metal surface. Simply connect the snap – on collection attachments and clamp a 2” hose on the opposite side, hook up your compressed air and you are set to go. Comes complete with shut-off valve and magnetic swivel base to position the unit any way you want. The air “gap” can be adjusted for a weak to strong vacuum.