The case is made of sturdy plastic. The locking mechanisms function well and the hinges are also ok. The ticking of the test reagents fits and PVC bottles jiggle not back and forth. The case contains test kits are for a total of 10 of the most important tests. It can be all test reagents buy more individually as needed. The instruction manual is easy to understand and in many languages, thus it's a thick notebook. The color scales are matched and clearly on each individual test, and what I personally find very good, washable. The 6 test cuvettes tightly and the scale is easy to read. The scope of supply also a 20 ml syringe. What I lack in the otherwise very good test case, is a small, stable brush to clean the test cuvettes. Since these are still attacked by the test reagents quickly. Otherwise, however, thoroughly recommended for those who want to control his aquarium water regularly.
