The material is red copper. The Kihei chain consists of long pieces and short pieces that alternate. The pieces are thin and small, giving a delicate finish. *The shape and size of the pieces may differ slightly depending on the lot. *As this is an accessory, the color may change to reflect changes in fashion. Also, during the processing process, color shading may occur without prior notice. Please note. (Some parts may differ in color from other parts.) *This product is sold by weight.