1. Material: plastic handle + black bristle / copper wire / stainless steel wire bristles 2. Usage: artifact cleaning/deburring/sanding/industrial rust removal/sanding and polishing, etc. 3. Industrial cleaning toothbrush, bristles are tight, not easy to fall out, durable 4. Arched handle, easy to hold, give people a comfortable grip, non-slip labor-saving good use 5. Stainless steel wire, copper wire, black hog bristle three materials to choose from, applicable to a variety of positions, good cleaning effect 6. Weight: black bristle model about 9g, copper wire model about 16g, stainless steel wire model about 14g 7. Size: length of about 17.6cm
