interwoven copper threads, 2 pieces in a set, with instructions for use, copper cloths and sponges clean extra thoroughly and gently, suitable for removing rust from cutlery, fine copper threads gently lift off even the most stubborn dirt, because copper is a soft metal and not so when wet scratches, use always with plenty of water, set consists of: 1x size 11x7 cm and 1x size 14x10 cm