Is there any way you can provide an overview or description of the Letraset markers? ie., properties, uses, comparisons to other kinds of markers, such as Copic or watercolor markers. I've been out of the loop for a while, and would like any information on this new product that you can provide. Thank you very much!
— bear1, IA on Dec 04, 2011

Here is some basic information about the Letraset markerts (taken from the Letraset website:

ProMarkers: alcohol based, permanent ink; multi-surface application (paper, glass, plastic, wood, acetate, etc.); 148 colors; 2 tips: chisel and bullet; sets available; blender; compatible with LetraJet Air Marker kit

Aqua Markers: water-based, pigment ink; blends with water even when dry, acid-free, light fast; 42 colors (inks also available), 2 tips: bullet and large bullet; blender, compatible with LetraJet Air Marker kit

We do not have a lot of experience with these particular markers, as we typically use Copic or Tombow markers. However, the ProMarkers are similar to Copics and seem to have the same capabilities. We do carry them on the Annex in many different sets.

Hope this helps!