Carding is the processing of brushing raw fibers to prepare them as textiles. Cotton, wool and bast fibers can be carded. Hand carders, somewhat like dog brushes, and are used two at a time, brushing the wool between the two until all the fibers in a bunch are going in the same direction. Machine carding is done with brushes on a drum. Separated fibres are fed into the machine, picked up and brushed onto either so-called flats (cotton) or several more drums (wool), and then removed. This product can be used for spinning after some more treatement.