Due to the Refill Extension the refilling of ink can be done cleanly and easily.  

No more dirty hands while avoiding plastic waste. Thanks to this refill helper there is no need to buy a new marker. Moreover the Refill Extension increases the filling quantity of each marker. Especially good for the environment is the packaging: it consists of 100% certified recycled plastic.

The Refill Extension B is suitable for all markers in the 200 series (Ø16 mm).