This versatile brush head is designed for outdoor and indoor use, nice for writing, painting, and fitness activities. Its large size and water-absorbing capabilities make it ideal for creating bold stroking on various surfaces. The replaceable head is simple, ensuring performance and convenience for users. Features -Color:Multi -Material:Plastic, sponge -Size:17.50X7.00X7.00cm/6.88X2.75X2.75in -Innovative design: the water dipping large brush replacement head offers a convenient and efficient way to practice calligraphy, enhancing your writing experience -Versatile use: painting sponge brush head is ideal for outdoor writing and fitness activities, seamlessly combining calligraphy practice with physical exercise -Easy replacement: the replaceable head allows for quick and easy changes, catering to various calligraphy practice needs -Sturdy construction: painting brush head is built to last, ensuring long term use without frequent wear and tear -Convenient water dipping: floor book pen replacement head solves the inconvenience of traditional brushes requiring a water basin, making calligraphy practice more accessible Package list: 1 x brush replacement head