LEGO Black Hero Factory Armor with Ball Joint Socket Size 6 (90638)

LEGO Black Hero Factory Armor with Ball Joint Socket Size 6 has been used in at least 8 LEGO sets over the past 13 years, since it was first used in 2011. You can also find this part in at least 13 other colors. It has a design ID of 90638 which can usually be found molded into the bottom of the part.