You are looking at a wholesale lot of 4 large vintage Ying Yang and Dragon coins.You will get two flying dragon coins and 2 Ying Yang coins.Each one measures 40mm or 1 1/2" and weighs about 17 grams each.They are in worn condition and made of a steel alloy.These are old reproductions.I do not know the origin of these coins.The Chinese rulers and Chinese Zodiac sign will vary on the reverse.The photo represents the actual coins you will receive.Necklaces can be made for an extra cost.Many available.