Targets your Internal and External Obliques. Synergistic muscles are your Hip External Rotators, Psoas Major, Iliocastalis Lumborum, Iliocastalis Thoracis, and Quadratus Lumborum. Also known as weighted oblique twist.
& Blades manufactured by the Hayakura Company, the SWAN and LOTUS tanto and katana (respectively) are of the sharpest blades in the world. With a Mohs hardness rating of 12 these weapons are used by the upper echelon of assassins and stealth operatives.