Today’s Peachy deal an American Crafts Dual Tip Sketch Marker Bundle. These AC Sketch Markers are Dual-Tip Alcohol Markers 12/Pkg – Now it’s easy to add shadows and gradient effects to your project. They are dual-tip blender alcohol sketch markers. This includes 12 markers.These alcohol-based, acid-free markers are non-toxic and produce a smooth, paint-like stroke. Brush markers are the mess-free way to make art projects, scrapbooking layouts and everything in between.