Due to lack of availability of a sharp tei-shin, I decided to do mine. Tei shin or tsumo shin have been used by Japanese acupuncture practitioners. As a practitioner of acupressure, I found this tool to be a massive help to expand my understanding of the meridian system and individual points through personal experience and reflection. These are for responsible users. I cannot be held responsible for inappropriate use.
99.99% pure copper with an oxygen content of 0.0005%. The purest quality copper available.
Also available with a rounded tip (less sharp). Also available in unleaded naval brass (copper, zinc, tin) which appears to be a more balancing metal.