This marker features a jumbo 15mm nib, Flowmaster pump action valve, and full body for maximum capacity on the go. The 660PI is loaded with Molotow's Coversall Cocktail: a pitch-black, alcohol-based ink containing synthetic bitumen to leave a permanent, visco-plastic coating. Coversall is highly opaque, UV- and weather-resistant, quick-drying, and abrasion-resistant. For best results, refill with alcohol-based Coversall and Speedflow refills. Shake well before use.
