I bought this because I wanted something other than the boring black case my tandem pump came with. I ordered the bright and colourful donut one with a paw print clip and red washers. It arrived today and I love it. My pump fits easily into the case and it can also be removed with no effort at all. I was a bit unsure about the clip when I saw it but it works brilliantly, just pushes on and pulls off what its attached to and stays put which is what I needed. The colourful washers add an extra bit of zing which appeals to me. It's an expensive purchase but its well made and certainly different!