Nyra Necklace This hemp hued necklace is created with wood beads and copper tubes. Nickel free clasp closure Length: 76.2 cm Weight: 127g CARE: Avoid water and other liquids on wooden beads.If marks appear, lightly polish using a soft cloth with a little mineral oil. Alternatively, coconut or linseed oil may be used. Do not store in direct sunlight. Both copper and aluminium can be cleaned using a soft cloth with Brasso.