These Markers have a Dual tip marker - tri-nib for fine, medium and broad lines on one end and flexible Brush nib on the other end. They are Low odor, alcohol-based marker set, available in 24 brilliant colors, is ideal for art and design. The  Color dries fast and is Permanent and non-toxic. Comfortable, ergonomically-shaped barrel does not roll away on any surface. 

Spectra AD Markers Basic 24 Pack