1、Shader and Liner: 6‑9V within the voltage can be used in shader and liner, 8V voltage speed up to 9000r / m, strong power, smooth needle, reduce skin damage, shader and liner can be easily achieved. 2、Input Voltage: input voltage, can be used around the world. 0‑18V can be adjusted arbitrarily within the shader and liner can be completed. 3、Comfortable Grip: Tattoo pen according to the hand muscle grip pen posture humanized design, comfortable grip, so that the tattoo artist easy to work. 4、Tattoo Foot Pedal: Tattoo foot pedal with stainless steel pedal, sensitive contact, stable current transmission, convenient for tattooists to control the power switch. 5、Construction: Aluminum alloy body, strong, durable and light weight. Compact mini power supply, light to use. Low noise during operation, so that customers are more relaxed in the tattoo process. 6、Suitable for the Crowd: The set of tools complete, professional, not only for beginners to practice using, to help beginners quickly improve tattoo skills, but also for professional tattoo artists to use. Item Type: Tattoo pen set Product Description: 1. Tattoo pen Size: Length(without needle): Approx. 8.7cm / 3.4in Diameter: Approx. 3.2cm / 1.3in Stroke: Approx. 3.5mm / 0.14in Needle: 99% of the tattoo catridge needles on the market Speed: 8V 9000r/m ± 10% Interface: 5.5mmRCA 2. Tattoo power supply Output current: 1.5A maximum Size: Approx.  9.7 x 7 x 2.5cm / 3.8 x 2.8 x 1in 3. Tattoo foot pedal. Line length: Approx. 1.4m / 4.6ft Use: Control the power switch 4. Tattoo straps Size: Width: Approx. 2.5cm / 1in, Length: Approx.  2m / 6.6ft Use: Wrap the tattoo pen tip for a non slip effect. 1 x Tattoo Pen 1 x Tattoo Clip Cord 1 x Tattoo Power 1 x Power Cable 1 x Tattoo Pedal 2 x Small Tattoo Band