 All of them began to produce various tools and ornaments in indigenous jade workshops, including adzes, bracelets, beads, and rings.The most notable jade products of these regions were the vast amounts of penannular and double-headed earrings and pendants known as "lingling-o", primarily produced in the Philippines and the Sa Huỳnh culture of Vietnam, though remarkably mostly with the raw jade material sourced from eastern Taiwan.These typically depict two-headed animals or were ring-shaped with side projections.