The 6/9/12/16Pcs Chinese Calligraphy Brushes Set comes with a Roll-up Bamboo Brush Holder and is perfect for Sumi Painting, Writing, and Kanji Art. The set features a Four-sided overlock style (eight cloth pockets) and a left and right overlock style (eight cloth pockets) for convenient storage of the brushes. Simply roll the brushes into the pen curtain to protect the pen tips. The bamboo pen curtain is designed for optimal ventilation and quick drying, preventing mildew and making it easy to carry.