The Molotow Masterpiece CoversAll Marker features a 60-millimeter tip. It is Molotow-s biggest pumpmarker, with a patented Flowmaster pump-valve which provides a constant ink flow for quick application to large areas. The marker-s ink is alcohol-based, permanent, high-covering, UV and weather resistant, quick-drying, abrasion-resistant, and perfect for indoor or outdoor use. Also refillable with other Molotow Inks and Paints. Note: for best results with these markers, use alcohol-based CoversAll cocktails refill from Molotow.