Overall, such tests are to be understood rather than prevention and should not necessarily be used for detective work. The pack contains the two drug tests, a bottle with liquid and 2 manuals that explain the usage and respond to some of the most common drugs and explain this neutral their effects and dangers - that should definitely with their children watch parents time and also at school times are used.
The drug test itself is easy to handle and depending on liquid detection in an area or urine explains how the execution to take place. As expected, the tests were at my parents' negative, but a bit of fun, it was nevertheless times. Especially since they were able to learn something new through the manual of the drug and were able to expand their knowledge horizons.
For parents who want to talk to their children about drugs, it's an idea. Who has the feeling of youth is using drugs, it can also make and simply look at how it looks in which - for school, it is by the way a very interesting area, and also an employer can allow the fun times to look around who would voluntarily undergo a drugs test - even though it can not be enforced and must. Overall, I give it 4 stars because it just works well for prevention, but not always 100% is exactly what the well-known example, with the poppy seed cake shows every now and then.