Brass knuckles, unnecessary. My bones are harder than that. There was 3 full sized, weighted throwing knives (one in the middle of my back, just under my shirt collar, one sheathed on each shin.). Two 5 inch wide shuriken (chest area), six smaller, thinner Togakure style shuriken (pockets), A manrikusari (a 40" thin steel cable with lead weights at each end) wrapped around my waist. A handcuff key under one 5 inch wide, black leather wristband, plus 3 dirks. A lockpick and tension bar inside of my belt. 3 darts under the other matching wristband. Hooked into the tops of BOTH wristbands were "ninja hooks", comprised of an S-hook attachment to my wristbands, a length of steel chain going up my sleeve to my elbows, and a larger hook at that end. These could be brought out and joined to garrote, block, entangle and opponent, or used to grip things to allow me to dangle from my wristbands at heights, as long as I needed to "hang out of sight" from my quarry or pursuers. Old ninja proverb: They NEVER look UP!