signet duo refill SB
chalk cartridge refill in plastic box with 16 colour
cardridges on self service-card
Note: The cartridges are waxy and differ to the chalk cartridge set "signet color".
IMPORTANT: Before use, make sure to test the chalk on a piece of fabric you will be using to be sure that the marks can be removed with the eraser. Marks can also be removed with a wet cloth. Removal of the markings must in any case be carried out prior to the further treatment for example ironing, washing or chemical cleaning.