The Dwarves are brand new that continue to clean model railways, a small revolution in H0 cleaning. - Cleaning Dwarfs consist of a durable plastic body with a brush-type cleaning surface that effectively removes dirt on the rails. - The gnomes are simply geklippst to the wagon axles and clean the rails under normal driving conditions in both directions almost incidentally! - Cleaning dwarfs can be used for two-axle wagons of the makes H0 Märklin, Fleischmann, Roco, Piko and TRIX (max. shaft diameter 2.0 mm). - Cleaning dwarfs are both equal as suitable for alternating current tracks. - Only when the surface to be cleaned is dirty, clean the dwarf must be replaced.