I have this kennel acquired as a second alternative to the Stefanplast transport box in the hope that it has a better quality. Unfortunately, I discovered upon arrival of Kerbl transport box that this is from the same company as Stefanplast and consequently, having the same properties. Since I've already returned the shipping of Stefanplast Gulliver 3, because the closures and the entire box make a good impression and a high of closures has not closed, I let the shipping of Kerbl also decline. The locking mechanism is simple, but looks like a breaking point and just does not meet my requirements for safety and reliability in a transport box. Then had to buy me a box in the animal super market because they lack alternatives in Amazon, with which I am satisfied with respect to the security and stability the most, even if the color scheme is more reminiscent of the military. The safety of my cats comes first.