Suntetsu (Japanese Concealed Ring Spike)
Concealed / Pressure point weapon
Quick Facts
Martial Arts
OriginJapan (Ninjutsu / Koryū Hayashi-ryu) (Muromachi / Edo Period (16th C.))
Wield TypeSingle/Paired
MaterialForged steel rod with a central swivel ring for the middle finger
Length14 - 18 cm cm
Weight0.1 - 0.25 kg kg
History
Traditional concealed weapon of Japanese Shinobi and Hayashi-ryu practitioners. Consists of a short steel rod (approx. 15 cm) with a swivel ring in the middle, hidden inside the fist.
About
The ring retains the rod in the palm, allowing instant spinning from concealed grip into needle jabs to pressure points (Kyusho) or bone crushing punches.