This Polar straggle is 30mm in length.  It is built on a fine core and is avialable in two versions; the basic version is fine dyeable fibres with uv added, the synergie version has either gold or silver added as an extra to the UV.   It is ideal as an added flash to the larger or longer lures required for sea trout or pike patterns.  (Utilised by Billy Scott in his  Sea trout 'Terror' patterns.   Recently tied by Davie McPhail on his uTube channel 
https://www.youtube.com/watch?v=GT3AcJHW34M )