A term variously used by different authorities, but at its minimum it is simply a kind of leaf-shaped flake found widely amongst the later Mesolithic assemblages of Northern Ireland and the Isle of Man, one component of the BANN CULTURE. More strictly, Peter Woodman defines them as large flakes having no significant tang, with light retouch, either as elongated or laminar forms less than 3.2cm across, or as leaf-shaped forms which are broader and have only very peripheral retouch at the butt.