In our car always flew some toys, children's books, pens, bottles and what you all so driving around with it (if you have children) through the area. Now we have installed in the back seat between the two child seats this practical bag. Due to the very variable subjects - the division of the two major subjects may be more or less made werden- free fit both big and small things like books easily in the box. It is secured with a Velcro fastener on the back, which can be wrapped around the seat belt. Thus the box does not fly during emergency braking to the front. The two attached neoprene bottle holders, holding small bottles up to 1.5 liters bottles everything fixed. And since neoprene also isolated, one has immediately added a nice hot / cold holding function. For us a very good acquisition, which we can highly recommend.