Tough cleaning for lab glassware, will not mar or scratch. Foam bristle will not absorb water. The brushes will not become soggy. Great for bottles, flask, beakers, carafes, graduated cylinders and much more. Diaswasher safe.
Brass brushes are made with brass fill and brass material is softer than Steel and Stainless steel material. Many uses include, plastics mold parts, Injection molds, and cleaning metal parts