Used to seal the head of fire/smoke and compartment walls, also used to seal the head of the Phoenix, Plus 60 and Titan barriers where they meet the underside of the non-combustible roof covering. Also used to seal gaps and junctions in roof systems and roof penetrations in Bushfire areas.They come in a pack measuring 1.2m x 800mm x 100mm, this gives you 5 No pre-cut strips 1.2m x 100mm x 160mm (6 linear m).