This is quite useful gun brushes/picks,and it contain 2 plastic，brass，steel brushs to meets your all kinds of needs.It can clean your gun quite clear,and you can also use it in other machines.Descriptions:Brush Material: Nylon,Brass,Steel; Brush Body Material: Nylon;Picks Material: Stainless SteelLegth: 6.7''; Fine Tip Height: 0.51'';Large Tip Height:0.71'';Weight: 71g/0.16lb.