The sixties and seventies of the last century were the golden age of advertising in the United States. With the vigorous development of the advertising industry, a large number of advertising pictures and illustrations came into being, and bright colors and transparent marker strokes are the classic features of this illustration era. ®AD Marker, part of the Chartpak family of brands, was founded during the golden age of advertising in the United States, and to this day, AD® markers are still the leading brand for art and design supplies.

At present, oil-based markers have mostly been replaced by alcohol-based markers, and AD® markers are one of the few xylene markers still on the market. The marker comes in 130 colors, and there is also a melange marker that can be used to create gradient effects. The ink capacity is very large, the color is bright and transparent at the same time, the coloring effect is very unique, the pen body is relatively thick, and the grip is relatively good. What's more, the tip of the AD® marker pen is a unique three-tip nib design, which means that one nib can have 3 line widths.

However, AD® markers are single-ended in design, and the xylene solvent in the pigment is very permeable, so they are very picky about the choice of paper. AD® markers are not recommended for use on photocopies because the ink will dissolve the toner, nor is it recommended to use it on Styrofoam, which is not resistant to oil and the ink will dissolve the material and not achieve the desired painting effect. In addition, xylene markers also have a pungent smell, so it is recommended that users draw in a well-ventilated area. It's important to note that oil-based markers are more translucent, and when oil-based markers and alcohol-based markers are mixed, the overall effect is less consistent.

Spectra AD™ Markers are a new generation of AD®markers that feature vibrant colors and a much less pungent odor than traditional AD® markers, with an ergonomic barrel-shaped body that prevents rolling. The new generation of AD® marker pen has 95 kinds of colors, the color of the cap and the ink are highly matched, the ink can be refilled but the nib can not be replaced, the three-tip nib plus the double-ended design of the soft brush, the use experience is also good, and Touch at the same price, about 20 yuan a piece.