Geomatric design leather stamping tool. Sponge dampen with water the vegetable tanned leather on the grain surface. Allow to dry but still moist only then commence stamping with one firm strike with a leather mallet. Do not stamp with metal hammer as it damages the tool. Keep tool dry and spray silicon release agent as anti rust and for clearer stamp impression with smooth release.
Stamp monster clay and Polymer clay too. Not for Metal stamping.