1Unique tattoo machine, strong power, 8 hours of work without heat, durable and reliable in use. 2High temperature resistant, strong plasticity and antimagnetic ability. 3Stable needle discharge with a frequency of 25,000rpm30,000rpm. 4Double coils, each coil with 10 wraps, suitable for most handles and needles. 5Special designed for liner and shader, wonderful and practical tattoo machine.