Frabjous Fibers Lamb's Tail includes 5oz. of Bluefaced Leicester top in beautifully hand-dyed, tone-on-tone gradient or variegated shades. BFL is a fine, silky, lustrous longwool fiber that's incredibly versatile. It's not scratchy, is hard-wearing and takes dye wonderfully. This moderately feltable fiber can be used for spinning striping yarns, making mini-skeins, carding, blending, needlefelting and wet felting.