Some Federation schools still order Federation patches with blue trim and thus need rockers with blue trim while others order World Moo Suk Kwan patches with black trim and thus need rockers with black trim.
Headquarters has available Jo Kyo, Kyo Sa and Sa Bom rocker tabs with blue and black trim. The person ordering rocker tabs can specify their preferred color.
The online mall also offers rocekt tabs with both colors of trim. www.moodukkwanmall.com