9pcs nylon watercolor line hook pen gouache acrylic traditional Chinese painting fine brushstroke hook line. Material: nylon wool + nickel-plated copper tube + solid wood pole. Features: Suitable for gouache, watercolor, oil painting, acrylic and other paintings. Nickel-plated copper tube, with firm connection and not easy to fall off. Pearl-painted wooden pole, comfortable to the feel. High-quality nylon wool, strong elasticity, difficult to remove hair. Pearlescent paint finish technology is beautiful and durable, and the solid wood pen holder feels comfortable. Nickel-plated copper tube, fastened tightly at both ends, making the connection firm and tight.