The Package Includes --- 2Pcs Copper plated brushes, 2Pcs stainless steel brushes and 2Pcs nylon brushes. 6 pieces in total, suitable for different surface types. Size: 7inch and 6.5inch. We offer complete wire brush sets. We offer complete wire brush sets. The 7" wire brush is for cleaning smaller surfaces like all corners, and the 6.5" mini size is perfect for tight spaces like crevices. Wide Application --- The distinctive features of our metal rust brush allow its you to hold and handle while cleaning flaking paint, rust, scratches, dirt, heavy-duty machinery, moss, wood, and metal surfaces. The stiff metal brush for cleaning is a practical tool for households and kitchens. Stainless Steel Wire Brushes --- Stainless steel is best for wet surfaces and more aggressive cleaning. Stainless steel brush is fit for cleaning and removing parts that need heavy duty scrubbing and rust on the machine. Nylon Wire Brushes --- Nylon brush can be used on delicate surfaces that need to be cleaned gently. Nylon brush is perfect for delicate household appliances. Copper Plated Brushes --- The Copper bristles is soft enough not to damage edges while still providing enough stiffness. Good for cleaning unfinished metal parts like screw threads,connection terminals,and cutting tools without damaging surfaces or fine features., Manufacturer: shuqiu