Erofa Finecolour Sketch Marker Pen 72-piece Sketch Set Artist Necessary Artkwork /Refillable Markers and Replaceable Nibs with Pen Bag (72) Outstanding performance in all areas of manga, graphic, design and illustration Perfect for cartoon illustration, as well as fashion design. Artist-quality markers feature two distinct nibs capable of achieving multiple line widths and fine tip for details areas. Alcohol-based ink is pemranent and non-toxic; dries acid free Package : 24 color markers with a black bag as picture shown . Each Marker Weight : 15 g , Length :150mm