Radiator Paint Brush 

1:natural black bristle or white bristle.

2:wooden handle 

3:Lacquered on the handle or not, both can be made.

4:Glue: epoxy glue,good quality glue, make the bristle not shed or pull out.

5:Ferrule: stainless iron ferrule or tin ferrule, very bright.

6:Packing: transparent PVC bag for each piece,1 dozen pieces packed into a inner box,several inner