Looks and works like a Harley Davidson air pump. I am very happy with this purchase. Very small, light and excellent for measuring barometric pressure. A small button on the side allows you to deflate if you over inflate the shock. Seals great and you don't lose any air pressure when you remove the air nipple from the air shock. I use this on my 2008 Harley Davidson Ultra. Because of its small size, it fits in a saddlebag without taking up much space. I used to have a Harley Davidson digital air pump but the readings stopped working so it was useless. I have a case for this air pump so we'll see how it holds up in a saddlebag.