This is _not_ a high quality set that will last you for a decade.  However it has everything you need to adjust watchbands for a reasonable price.  I really appreciated the "hammer" with the little tools that let one hammer out the band pins -- and all in a matter of seconds.  That made adjusting the band a breeze.  Recommended even if the kit isn't of high quality -- it still gets the job done.  There are instructions for the tools but they are on the website of the manufacturer.