Size - 8mm / 0.31 inches (000#) hair length, 180mm / 7.09 inches. The handle is made of birch wood and designed to be easy to grip, providing comfort and security when holding the pen. Material - The brush head is made of nylon bristles, which have good elasticity, are not prone to shedding, have a soft texture, smooth brush strokes, strong water absorption, and are convenient for dipping paint. The metal copper sleeve ferrule makes the pen tip firm and prevents shaking during painting. How to Use - Immediately after use, clean the brush with solvent or lukewarm water, and dry the brush head upright in a cool, dry place. To prevent deformation of the brush head, do not let the brush head come into contact with other objects. Applications - This fine paint brush is suitable for watercolor, acrylic, ink, gouache, oil painting, ceramic painting, industrial painting, etc. It can be used for models, details, bodies, faces, art, illustrations, renderings, etc. Suitable for beginners, artists, or painting enthusiasts. Notes - Before use, gently rub the brush with your hand and soak the pen tip in 30-degree lukewarm water for about 2 minutes. BB1①-88