1.Wire brushes help to remove the welding slag,paint stains,unfinished metal parts,etc.2.Use the brass bristles brushes to clean the unfinished metal parts without scratching the surfaces or fine features.3.Use the stainless steel bristles brushes to clean parts that require heavy duty scrubbing.4.Material: The brushes are made of Stainless Steel and Brass for Cleaning Welding Slag The handle is made of plastic,easy to handle and control5.Wide Application: Clean steel parts,machinery,unfinished metal parts,paint stains,special without daing the surface or fine features. It can also be used to clean doors,windows,sliding doors,floor tiles,etccolour:Black & goldmaterialNylon stainless steel brassPackage Contents10 x Brass brush10 x Stainless steel brushOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.