Awesome and really strong Brass Knuckles. One pair is smooth and the other pair has little tiny balls on the tips. These print without supports. To print a pair, print two halves of the type you want, and the pegs. Once printed, hammer the pegs to connect the two halves.Print two halves of each type, smooth or with small balls, and print the pegs. One all printed, hammer the pegs between the two halves.