Small modular structures are ideal, for example, for frontier crossing customs offices. One such customs office produced by KOMA Slovakia has been built at the Slovak-Ukrainian frontier. The facilities for the customs officers cover an area of 90 m² and consist of four modules of the ComfortLine series. The investor opted for this construction type for one reason - the speed of modular construction - with the related advantage that the structure is temporary and can be expanded or even relocated. The building is coated with a horizontal wave and the structure includes an untypical attic. Heating is provided by electric radiators.