Panduit FSD80-8-D Polypropylene Insulated Ferrules, 14 AWG, .31-Inch Pin Length, Single Wire Blue Din End Sleeve (500-Pack) Polypropylene insulation housing conforms to DIN color requirements Meets DIN standards for single wire containment Funnel entry for faster insertion and lower installed cost Designed with a seamless barrel to contain loose wire strands for superior terminations Eases insertion of wire into terminal block