The rotary tattoo machine: Weight: 6.17oz, Dimension：3.7in x 2.2in. Carbon steel, unibody. Japan motor, durable. Slider system: fixing needle is more stable. Operating voltage: 7-10 V DC. Lining voltage: 8-9V, Shading voltage: 7-8V <br>Lots of tattoo supplies for artists. The Extreme is a versatile rotary machine designed for a wide variety of work, such as color-packing, light black and gray shading, and heavy black filling. This lightweight, balanced machine is great for everyday use. <br>Our company is a professional tattoo supplier, each machine has a professional tattoo artist design and testing. Our dozen or more professional tattoo artists have a post-test feedback, which is a good suit for both novice tattooists and professional tattooists. Cost-effective, and complete set of accessories, simple operation is its greatest advantage. <br>Then , Extreme tattoo , will not disappoint you