Multiliners are permanent, waterproof pigment pens that will not bleed into COPIC markers. These precision drawing pens come in a variety of sizes that offer a distinct line variation. They are ideal for details, fine art, design, comics, modeling, journaling and papercrafting. Details:Gray inkAvailable in multiple nib sizesPigment-based inkWaterproof and archivalDisposableCompatible with Copic markersPhotocopy safeClosest Copic color match is C4