Designed specifically for professional permanent makeup artists, Mast Ocean Heart Tattoo Cartridges combine precision engineering with exceptional performance. As the world's first colourful gradient PMU cartridge, the Ocean Heart series delivers both advanced functionality and striking aesthetics, helping artists create flawless results with confidence. Featuring an ultra-slim, extended taper design, these cartridges provide enhanced visibility, accurate pigment implantation, and superior control for eyebrow, eyeliner, lip blush, scalp micropigmentation (SMP), and fine detail PMU work.