Made of thermoplastic nylon material (Polyamide PA) with matte black finish and offered in inch and metric sizes, GN 6336.13 Nylon Plastic Star Knobs with Loss Protection, Tapped Type, can attach to base element with 301 Stainless Steel ball chain (GN 111.5) or clear plastic-coated, 301 Stainless Steel retaining cable (GN 111.2). Products have 303 Stainless Steel tapped inserts and are supplied assembled with lanyard ring, lanyard ring and retaining cable, or lanyard ring and ball chain.