Molotow refill extensions "B" for marker 100 series, 6 per set are an easy, fast and clean way to refill your Molotow marker. These refill extensions are for use with Molotow 100 series. Simply screw on the patent-pending extension to the marker. Your hands are kept clean since the extension piece covers the "messy" areas. With these refill extensions you can save money and help sustain the environment by using the markers over again. Made in Germany. Pack of 6.