Molotov ONE4ALL Acrylic Twin Pump Marker, 1. 5mm & 4mm Nibs, Signal White, features high-covering, premium acrylic-based pigment paint in an easy-to-handle marker that works on almost every surface, both indoors and outdoors. This double-ended marker includes a 1. 5mm nib and a 4mm nib. This flow master pump marker system has patented capillary technology. The acrylic-based hybrid paint is UV and weather-resistant for highest opacity. It is solvent-free and dilatable with water or acetone. Tips are exchangeable and marker is refillable. Made in Germany.