Molotow ONE4ALL Acrylic Twin Empty Pump Marker, 1.5mm & 4mm Nibs, is an easy-to-fill marker with Molotow One4All acrylic paint (sold separately). This double-ended marker includes a 1.5mm nib and 4mm nib and features a flowmaster pump marker system that has patented capillary technology. The high-covering, premium acrylic-based pigment paint in an easy-to-handle marker works on almost every surface, both indoors and outdoors. The acrylic-based hybrid paint is UV and weather-resistant for highest opacity. It is solvent-free and dilutable with water or acetone. Tips are exchangeable and marker is refillable. Made in Germany.