This is a very interesting and great mini bike pump. It is very portable, extremely small and lightweight. It not only works on bikes but it works with ball and even motorcycles. It comes in four colors, black, silver, gold and pink. This has easy to use valves and the mounting kit attaches securely to the bike. The pump is made of a durable aluminum alloy. So far the only thing we have done with this is attach it to my sons bike and pumped up a ball. The ball pumped up great and the pump worked very easy and attached back just fine. Hopefully i wont have to use this on any of the bike tires but if i do i’m sure it will work just fine as well. I am very happy with this product and would purchase again for other bikes. I received this product for free in exchange for my complete and honest review.