2Pcs/Set Surgical Tattoo Piercing Skin Marker Positioning Body Art Pen With Rulers Easy To Wipe Description: This set contains 2pcs skin marker pens and 2pcs rulers with tips of 0.5mm and 1.0mm. Adopting non-toxic and safe material, it is widely used in radiological research and treatment, tattoo, surgical and skin care treatment to mark and position on patient's skin. Scale mark on the pen and a ruler can ensure accurate positioning and marking. Sterile, disposable and cap design ensures safe use. Features: Ink is non-toxic, environmental and harmless to skin without irritation, which won't remain on the skin forever. Fine ink particle will not enter into the skin. Sterile pen and ruler with scale mark can ensure accurate positioning and marking for tattoo, surgical, etc. 0.5mm and 1.0mm tips, a regular tip and a ultra fine tip for detailed work can meet your different needs. Can draw smooth and clear marks fluently and is easy to color.  Disposable for single use only. Specifications: Hard To Wipe Ink Main Ingredients: Gentian Violet Handle Material: Plastic Options: Easy To Wipe, Hard To Wipe Pen Length: Approx. 16cm / 6inch Qty: 1 x Set of 2Pcs Skin Marker Pens + 2Pcs Rulers Weight: 20g Type: Tattoo Accessory Function: Marking and Positioning on Skin Package Includes: 2 x Skin Marker Pens With Cap 2 x Rulers Notes: 1. Please test first for facial use and disinfect after marking, and the mark may remain a week. 2. Each pen is used only for a single person to avoid cross infection and not suitable to be used on wounded and mucosa skin, and please do not use if package is damaged. 3. Please test on your skin first then on customer's skin if you want to apply iodine after marking for enhanced and sterilized purpose, and remove mark with 70% medical isopropanol wet wipe or low concentration alcohol. 4. Please don't apply other liquid when the mark is not dry to avoid wipe away mark. 5. Please cleanse the skin before positioning to avoid greasy and dirty skin to block the pen tip. 6. Please swing the pen gently and mark on the paper then on skin if the pen has become wet. 7. It can't mark if the skin is not dry. 8. Please cover the cap instantly after use to avoid volatilization.