◆ The brush has resilience, making it easy to control the start, stop, and sweep of strokes. ◆ Weasel hair brush ◆ Moderately soft Diameter: Ф10mm x Bristle length: 42mm Instructions after use: After use, wash the ink off the bristles with water, gently rubbing it with your fingers. It is especially important to thoroughly wash away the ink at the base of the bristles. If this is not done properly, ink will accumulate at the base, which can lead to the ink decaying or the hairs breaking. After washing the brush, remove the water while shaping the bristles with waste paper. It is best to store the brush in a well-ventilated place and dry it by hanging it up.