The Detail Black ink stamps crisp & clear every single time, for a perfect stamp impression. The hybrid formula means you can use this ink with both watercolor, water based markers and alcohol based markers. Includes a raised felt pad surface for working with any sized image. This package contains one 3.75x2.75x.75 inch ink pad. Acid free. Archival quality. Conforms to ASTM D 4236. Made in USA.