Silk strings are made by gathering a prescribed number of strands of silk thread, then twisting them tightly together. The twisted cord of strings is then wrapped around a frame and immersed in a vat of liquid of natural glue that binds the strands together. The strings are taken out and left to dry, before being cut into the appropriate length. The top thicker strings (i.e. strings one to four) are further wrapped in a thin silk thread, coiled around the core to make it smoother.