Set Includes (1) Breech Cleaning Brush and (1) Fire Channel Brush. Breech Cleaning Brush is for cleaning up the threads around the removable breech plug. Breech Plug Fire Channel Brush cleans out the fire channel of most in-line breech plugs. Eliminates blockage of the fire channel. Can be used in conjuction with T-17 Breech Plug Cleaner. For more Muzzle Loading Accessories Click Here!