Introducing the DPWOUM 4Pcs Multi-Purpose Deep Hole Marker Pens - a versatile set of colorful carpenter pens perfect for various applications. These waterproof markers come in vibrant shades of red, black, blue, and green, making them ideal for bathroom and home decoration, construction projects, and woodworking tasks. With their permanent ink, these markers ensure long-lasting and precise markings on various surfaces. Whether you're a professional contractor, DIY enthusiast, or simply looking for reliable marking tools, the DPWOUM Multi-Purpose Deep Hole Marker Pens are an excellent choice. Enjoy the convenience of having multiple colors in one set, allowing you to color-code or highlight specific areas with ease. Unleash your creativity and tackle your projects with confidence using these durable and high-quality markers.