A 3/8” tattoo digit is suitable for all animals, sheep or cattle. It produces a digit 10mm tall. Six and 8 place pliers have digits in two rows of 3 and 4 places. For 6 and 8 place special blocks, order two x 3 or 4 place blocks. To identify if your tattoo plier is Short Pin or Long Pin, look for an ‘S’ or an ‘L’ stamped on the inside of one handle.