The material is made of brand new PP, which is not easy to crack. It uses a solid stick core and a lipstick-style rotational design at the tip of the pen. When using this pen, the paper does not crease, the paper does not penetrate, and the paper does not leak ink. It has a long shelf life, does not stick to the hands, and leaves no residue. The vibrant colors are perfect for graffiti, marking, and highlighting. It's the perfect choice for you~~