Kwadron tattoo needles are known for being precisely made with high-quality materials for optimal performance. Kwadron cartridges boast a unique stabilizing system for optimal tattooing. The cartridges also employ a full membrane that protects from ink back flow. These cartridge tattoo needles are made with medical grade plastic housing, which helps reduce friction between the needle grouping and the tip. The surgical steel needles are razor-sharp and designed with utmost precision for every configuration.