... , M, J, B. 2) Content: metallic yarn, 70d/30d x 2nylon, 68d/7 Metallic Yarn Specifications:1) Mainly types: H, X, M ... , J, B.2) Content: metallic yarn, 70d/30d x 2nylon, 68d/75d, polyester and other metallicyarn ... .Inner packing: 1 scale board and card/plastic bag Metallic Yarn