Necklaces / Pendants by gill forsbrook Pendant of white polypropylene curl with large onyx bead on black nylon thread. Length is approximate. Features Primary Material : polypropylene Other Materials : nylon thread and onxy Length (inches) : 30 One of a Kind : No Hallmarked : No Cleaning InstructionsClean plastic and stone by gently wiping with a soft damp cloth or cotton wool, a little mild soap may be used.Nylon thread may be washed in cool water with a little mild soap, rinsed, gently patted with kitchen towel and left to dry naturally.As with all jewellery avoid spraying with perfume and hairspray