"A tattoo round liner is a type of needle configuration used in tattooing. It consists of a grouping of needles that are arranged in a circular pattern, and are typically used for outlining or creating fine details in a tattoo design. The number of needles in a round liner grouping can vary, but typically ranges from 1 to 14 needles. The smaller the grouping, the finer the lines we create. Round liners are commonly used in conjunction with a tattoo machine, which moves the needles in and out of the skin at a high frequency to create the desired effect. Available in all sizes and types: Round Tattoo Needle(RS,RL) Flat Tattoo Needle(F) Magnum Tattoo Needle(RM/CM,M1,M2) Bugpin Tattoo Needle(08) "