The project includes the modernisation of 2200 wagons belonging to PKP Cargo S.A. produced in 1980-2005, the Eaos and Fals series, registered in the National Railway Vehicle Register (NVR) under EVN numbers. These are four-axle wagons intended for the transport of bulk bulk materials (e.g. coal, ores, sand, aggregates). Each wagon is equipped with 4 wheels (wheels) and 16 cast iron brake inserts of the DO-320 type.