EL CARTEL was established to provide high quality needles for most demanding tattoo artists. Thanks to new technology , high quality materials and very strict quality control - EL CARTEL created next-gen tattoo cartridges . For safety and hygienic reasons EL CARTEL uses elastic and durable membranes in cartridges to prevent any leakage from ink or blood to machine . Thanks to high quality materials our needles guarantee smooth ink injection and remains sharp during long sessions. All cartridges are sterile with shelf life time up to 5 years and safe to use. These cartridges work with any machine with cartridge grip.