RANGER-Archival Ink Pad. Archival Inks provide lasting stamping results that are permanent on many surfaces. Get a crisp image that doesn't bleed over water-based inks and markers, acrylic paint, and water colors. Acid-free, non-toxic, fade-resistant and water-resistant. Raised stamping surface. They won't deteriorate paper or photos and they won't bleed when painted over with watercolors or water based markers. Measurements: 2-3/4x4in.