because the processing is something inexpensive yet. Although the car about 25 liters of beverages and other stuff hät easily, although the rollers are mounted only with a sheet, and seem to me something wckelig on his feet. The roles themselves are not made of rubber but soft plastic, but still relatively quiet. What I'm missing is a little below seated handle with which one can carry the trolley as well. Even the bag is made of plastic which is apparently impregnated with plasticizer, ... but is very far more resistant. The question is just how long this car will really keep ... thumb a, because the price is also less maintenance still OK.