“An arrangement for providing explosive charging and a plug into a bore hole, wherein a hose comprising at least one first conduit is introduced into said bore hole. Also explosive material is introduced to an outlet of said first conduit and thereby into said bore hole. In addition a plug is introduced into said bore hole by the help of said hose. The plug has a diameter, the size of which is configured to be manipulated after or during introducing into said bore hole at a certain depth so that after said introducing the diameter of the plug is larger than before said introducing and so that the surface of the plug after manipulating the size of diameter essentially make a physical contact with the bore hole surface. The plug is introduced by said hose in a releasable manner so that after or during the manipulation of the plug diameter size the plug is configured to be released from the hose and to stay in said bore hole essentially at said certain depth.”