Maybelline Mascara Illegal Length Black Illegal Length Fibre Extensions Fibre-Fix Brush and Sealing Formula work together to build lash appearance with up to 4mm fibres for dramatic looking length. The Fibre-Fix Brush reaches each lash from different angles for optimal fibre placement and the Sealing Formula visibly stretches lash appearance. To Use: Extend lashes upwards with Fibre-Fix brush from root to tip. For best results, do not let dry between coats.