Carbon fiber rods are the best of both: the carbon fiber cant scratch your bore like stainless steel,and they wont embed like coated rods. Plus, Carbon Fiber rods can be bent to an extreme degree and return to their original straightness. Feature an ergonomically designed handle that spins on two sets of ball bearings. The shank-through construction also allows the user to apply reasonable hammer blows to the end of the cleaning rod to get a tight patch through a bore. 36 inch rod.