The answer is not necessarily, as the size and shape of a vehicle’s roof bars will dictate what types of roof boxes can be fitted. The most common type of bars are square or oval shaped, but there are also those designed specifically to fit onto vehicles with curved roofs. It's important to check the compatibility between your car and the roof box you are buying before purchase. Fitting instructions for both the roof bars and box should come with the product itself, but it can also be helpful to find out what type of car fitting your vehicle has before purchasing. Once the roof bars are fitted, the roof box can be easily attached and secured with straps to keep it in place. It is also important to bear in mind that a heavy roof box will increase the load on your car’s roof, so check with your vehicle's handbook or manufacturer to see what weight capacity your car is able to take. If in doubt, always seek advice from your local garage or dealer to make sure you are safely secured and ready for the journey ahead.