Mast Tattoo Japan Motor Rotary Tattoo Machine Pen Two Replaceable Handles WJX Needles Tattoo Pen Machine Kit. Battery Capacity: 2000mAh Recharging Time: 2 hrs Powerpack Working time: Approx. WJX Cartridge Needles are patent design make the needles run extremely stable and smooth, have the Lowest Tin solder to avoid chemical process to ensure safety. Special Rebound - There is four special elastics that lighten the pressure the needles bar. Top Grade LG PC - The frame made by PC polycarbonate, Polycarbonate is colorless, transparent, heat resistant, impact resistant, flame retardant, BI grade, and has good mechanical properties at normal use temperatures.Original Design - From the outer needle shell to the needle thread, and even every part, we have carried out layer screening and testing to make a needle run smoothly, save more ink, fast color, low skin loss, and every detail is critical. Lowest Tin Solder - The needles wire is fixed by fogging and discharging needles, plastic sets and precise moulds, which greatly reduces the welding process, thus avoiding the chemical pickling process and ensuring the safety and hygiene of each needle wire. Cross Limiter - The design of secant needle is similar to each other. The stabilizing device of cross needle can make the needles run steadily and increase the ink storage at the same time. We are professional mamanufacturer and we also have trade company to do hair extensions business. We will quote you a best price. Professional & efficient customer service team are ready to help you. We will try our best to solve the problem for you. If we cannot help you through emails, we will give you return instructions.