https://kongoshindojo.com/product/koga-ryu-jujiken/
Koga Ryu Jujiken - Bujinkan Kongoshin Dojo
Aug 15, 2023 - These are a four pointed Jumonji style. The design of these is very sharp and sticks into wood targets more easily than others due to that shape. That makes...
koga ryubujinkandojo