STABILO Cappi colouring pens are an innovative new range carefully designed for daily use by children. An ingenious ring system can be used to tether all caps together so that the inevitable lost cap doesn't happen and all the pens stay together. The pens have a flattened profile so that they won't roll off the table. The ink is easily washable out of most fabrics. The ergonomic grip zone is easily gripped by small hands. Pens can be left uncapped for 24 hours without drying out. Ideal for all children 6 and over.