Item arrived damaged and crumpled front tip with grinding noise when turning fingers. I would be afraid to connect and use it with air. I should have taken feedback advice but I guess I don't believe other reviews, I will from now on. The item was in a box that was shipped in a bubble envelope. Maybe that's why the item didn't work properly as it probably dropped. But then again, this is the cheapest item I've ever bought for use in my home business. I hope this is helpful to others.