Get creative with our 2-way jumbo tip pen! Use it wet for a strong, permanent bond or let it dry clear for a temporary fix. This photo-safe, acid-free pen conforms to ASTM D4236 standards and is xylene-free. With a broad ball point tip and 1-mm line, it's perfect for all your crafting needs.---FEATURES:---Astonishingly versatile, this pen boasts two remarkable functions. Firstly, it is photo safe and acid free, ensuring that your precious memories remain unharmed. Secondly, it conforms to the esteemed ASTM D4236 standard, guaranteeing its safety and reliability. Moreover, this pen is xylene free, making it an eco-friendly choice. Crafted with a water-based formula, it effortlessly glides on any surface. To top it off, it is available in a jumbo tip design, allowing for bold and impactful strokes.