Mideer Washable Markers comes in box of 12 or box of 24 colors. These markers are rich and vibrant in colors. Washable on fabric, skin and white board. Do avoid any drawing directly on wall.Triangular Pen Holder, easy to draw with thick pen holder, allowing younger child to learn the correct gesture to hold a pen. Other features include:Pressure resistance Pen-Tip. Medical Grade PP Pen Holder (external material). Conical Pen-Tip allowing drawing from different angle (thin line with pen-tip; wide lines with side). Packaging comes with perforated line for easy opening and act as a ready pen holder. Environmentally friendly materials, safe and non-toxic.