Efficient Leather Dyeing Tool: the Healifty wool ball brush measures 4.92 inches and features a natural wool dauber ball that delivers smooth, wide, and even strokes, making it ideal for precise leather dyeing and DIY craft projects Natural Wool Material: Crafted from durable natural wool, this wool dauber brush efficiently absorbs and distributes dyes, stains, and finishing liquids, enhancing the performance of leather dye tools Environmentally Friendly Carbonization: the wool ball brush rapidly transforms into carbon when burned, offering an eco-friendly option for applying alcohol-based dyes and various liquid treatments safely Compatible with Multiple Liquids: This wool dauber brush works effectively with hardeners, alcohol , bed treatment agents, oily dyes, brighteners, sealing liquids, and other liquids commonly used in leathercraft dyeing Comfortable Size for Precise Handling: with an approximate length of 4.92 inches, the wool dauber brush provides a comfortable grip and control, facilitating detailed work on leathercraft and various DIY projects