Experience a unique way to use makers with Pilot Frixion Color! Frixion Colors are felt tip markers containing a special thermo-sensitive gel ink. Friction control heat generated from the markers’ eraser tip turns the ink invisible with no damage to your paper. Erase and recolor instantly over any mistake! Create interesting artistic effects by rubbing out sections of block color. These multi-faceted markers are also well suited for sewing and fabric arts as you can sketch design outlines on fabric that disappear after ironing over it.