2 Pieces Black Nylon Thread Invisible String, 0.8 mm Tarnish Resistant Jewelry Beading Wire, Black Invisible Bracelet String, for Hanging Decorations, Crafts and Jewelry Makinga : Amazon.co.uk: Home & Kitchen
Beadalon 7 Strand Beading Wire 0.38mm (.015in) - Black - 9.2m (30ft) - The Bead Shop