Product Parameters: Material: Nylon Bristle Package List: 4 * Absorbent Pen Quantity: A set of 4 refillable watercolor brushes for painting, exercises for art lovers or beginners. Easy to Use: This set of brushes with a refillable container is suitable for all kinds of artistic painting. They are durable, easy to control, and clean. You can write or draw continuously, and you can use it with confidence, whether you are a beginner or an advanced artist. Multifunctional: This set of water-holding brushes twists easily to add water or ink and can color large areas and trace the finest lines. It is easy to create new shades and blend your favorite colors. This set of water brushes allows you to easily enjoy your creative time. Portable: Practical, store them in your box when you create. Good brush quality, not easy to split. The pen tip is clean, has moderate elasticity, and is doubly fixed at the joint level. Ideal for use at home or in the studio and anywhere, an essential tool for amateur artists and painters.