Griffin Bead Cord 100% Natural Silk Dark Blue #6 Thickness: .70mm/.028" Length: 6.5' (2 meters) Each card features top-quality German-made Griffin bead cord. GRIFFIN 100% Natural Silk is made exclusively from the high-grade filament of the silk cocoon. Simply take the needle from the card and off you go! The twisted stainless steel needle saves threading time.