Ranger Archival Ink Re-Inkers are archival-quality 0.5 fl. oz re-inkers designed for use with Ranger Archival Ink Pads. These acid-free, non-toxic, waterproof inks come in vibrant colors and produce brilliant, long-lasting stamps. Ink is permanent on matte and gloss papers. For best results, allow ink to air dry on matte surfaces and set with heat on glossy surfaces.