This set of waterproof makeup position mark tools includes 4 marker pens and 8 pen refills, perfect for precise and clean lines. The pens are individually sealed and sterile, ensuring safe use for both professionals and beginners. White color is ideal for clear visibility on the skin, making it suitable for various applications such as eyebrow embroidery, plastic surgery, ear piercing, and skin marking. The pen tips are designed to draw accurate lines effortlessly, and the waterproof and sweatproof features ensure long-lasting durability.