P610846 Prym Chalk cartridge set. Suitable for tracing, writing and marking on almost all surfaces. It is ideal for hand crafts and hobbies, such as sewing, quilting, handicrafts and model building. The refillable cartridge holder can be used to make exact line marks and make dotted markings. At the upper end of the cartridge holder there is a knob with an eraser cartridge; press the retaining mechanism on this to change the cartridge. The scope of delivery includes 8 white and 8 coloured cartridges, the chalk cartridge holder and a special sharpener for the chalk cartridges. The cartridge holder is supplied containing one white cartridge. The cartridges are economical in use and are supplied in protective packaging for transport.610846