The K-51 sounds more like a deadly weapon than the broad tip marker that it actually is. KRINK has come up with new colors of the popular marker and it will aid artists fight on the streets. New colors include green, red, blue and purple and its translucent colors are water resistant and works on most surfaces including metal, canvas, painted surfaces, wood, glass, plastic and paper. The quick drying marker comes with extra broad tip which has two edges that provides different line width. All of the markers are handmade in USA and are of the highest quality. Pick your marker up at the KRINK dealers and online store.