Filling systems are devices and materials that are used to fill the empty space in packages and thus protect goods from damage during transport. 
Different materials are used as filling, such as air-filled PE films, various processed paper, different types of polystyrene, cardboard core, etc. Each filling material has different properties and is therefore suitable for different goods. The size of the company and the number of shipped packages, the difficulty of use and the cleanliness of the filling are also important factors for choosing a suitable filling material . Many solutions are also very demanding to store and transport.