VFG Intensive cleaning pellets are specially made for extremely strong and stubborn dirt because of the with brass completed fibre felt. The VFG Intensive cleaning pellets are minimally larger than the actual calibre of the weapon. This means that the with brass completed felt element is squeezed together while being pushed through the barrel, so optimally and completely removing all the dirt. For normal dirt and for oiling and drying we recommend to use the VFG Comfort cleaning pellets.