Used to fix the chimney to the wall. It can be placed anywhere along the flue, except at the joints. This wall support allows regulation between the chimney and the wall from 100mm to 250mm, This wall support can be cut using a grinder or a metal saw, The flat wall supports withstands only lateral and horizontal forces and does NOT support the weight of the flue. You still need to purchase a locking band to connect 2 elements together