168/120/100/80/60/48 Colours Dual Tip Art Markers Sketch Pens Brush & Chisel Permanent Marker Pens With Base & Outline Markers DBRUSH & CHISEL, DOUBLE TIP, DOUBLE THE FUN: Widen your artistic horizons with the dual tip marker design! Choose the brush tip for sweeping, calligraphic strokes or quickly color in large areas with the wide chisel tip. What's more, now Chen Rui replacement brush tips is available, so you can easily replace the worn out tips to ensure consistent and precise lines whenever you create. The only limit is your imagination REFILLABLE INK FOR A LIFETIME OF