Kwadron Optima PLUS Round Liner PMU Cartridge (20pcs)KWADRON PMU OPTIMA PLUS CARTRIDGE CARTRIDGE KWADRON PMU OPTIMA PLUS a 1RL needle enriched with the unique 6 + 1 Technology, which allows for even more precise and stable operation with a greater pigment flow into the skin without the effect of spilling. Optima Plus is the latest product of the revolutionary series of Kwadron PMU Optima cartridges. 6 + 1 Technology unique needle stabilization Thanks to the use of the 6 + 1 Technology system in Optima