Platinum Preppy Ink Tip Refillable Sign Marker Pen - 5 Color Set

Excellent pens. Best of all, you can buy rubber o-rings and convert these sign pens to accept ink such as Noodler's (see the jetpens article on converting the platinum preppy fountain pens to eye dropper fountain pens - the same o-ring size works on the sign pens). The converted pens produce a great look when you use the electric/highlighter inks (I've tried Lightning Blue, St. Patty's Eire, Hellfire and Year of the Golden Pig). The writing also looks good with regular Noodler's ink (I've tried Ottoman Azure and Gruene Cactus). Since the felt tips are replaceable, the ink options are limitless. Great pen, the tip is fairly fine for a sign pen, and the transparent body allows you to see how much ink you have left... and it's a beautiful pen!