When the wheel is broken, I'm looking often in large toolbox for the right tools and then fail because the handles are too long to be recognized properly etc. Moreover, it is often said: A grip, and the fumble go. In this little box you have everything tucked practically together. If the cardboard cover only times off, he's just still gray, with no pressure or similar. A Part description or inventory list there (except on the Umhülle in English) not - you really have to know yourself how and where which tool should be used. To take away the suitcase is too unwieldy for home repairs but just right. Of course you get for this price not a professional tool, but your own bike (and perhaps the rest of the family) can thus keep in good shape. A few patches are also included, replacement valves not, but there are also different sizes / models, thus they would not probably helpful for everyone. Before you can repair the wheel expensive, is worthwhile in any case, the acquisition of such a bicycle tool box - instructions for everything you've never done, there's the internet to suffice.