Nowadays, luggage fabrics are generally made very well, because most people who buy luggage only look at luggage fabrics, but in fact, the quality of luggage has a lot to do with the trolley.
Generally speaking, the trolleys of the more advanced luggage are all nickel-added, such trolleys are light in weight and high in pressure resistance. But the price of such luggage is also high. There is also a carbon-added trolley, which is also lighter, stronger and more durable, and the price is relatively cheap. The worst quality trolley is the trolley made of plastic, which is cheap but very easy to break.
In fact, you will find that, in general, the finer the trolley, the more expensive it is. As for the thick iron trolley, it's cheap but not easy to use.
There is also a certain gap between the trolley and the case, which is to make the pull rod smoother and also to prevent the metal from expanding and breaking due to changes in heat and humidity.
As for the selection of the wheels of the trolley case, you can first let the case turn around in place, and compare which case has more turns. The second thing to consider is noise. The quieter the wheel, the better. At the same time, the wheel cover of the wheel of the trolley case should be thick. If it is a very strong wheel, even a free fall will not break it. The other is to put the box on the side to see if the direction of the wheel is vertical and whether the axis of the wheel is oily. These are also important criteria for checking the wheel.
When purchasing travel luggage, you should purchase suitable specifications and fabrics according to your personal needs. Most of the hard cases have the characteristics of high-temperature resistance, wear resistance, impact resistance, waterproof and compression resistance. Moreover, its hard shell material can protect the contents from being squeezed and impacted. But the disadvantage is that the built-in capacity is fixed. Soft cases are convenient for users to use more space, and most of them are light in weight, strong in toughness and beautiful in appearance, which is more suitable for short-distance travel.