I am currently studying 'Forensic Science' with the Open University. It's a great short course and includes a study section on fingerprints.
It suggest we should purchase a small fingerprint kit to take a few prints and see how easy/difficult it is, and this is one of the options recommended.
It is obviously a childs kit. Nevertheless for the purposes I wanted it was fine. It isn't robust and won't stand up to the hurly burly of the crime scene, but then it isn't designed to. So if OU S187 is your course, go for it.