Do it Acid Flux Brush is a high-quality tool designed for applying acid, dope, flux, and adhesives with precision. Featuring tinplate metal handles, this brush measures 5-1/4 inches in length and is equipped with pure, stiff black natural horsehair bristles, making it i for hobbyists and detailed work. Its durable construction ensures reliable performance for various applications, and it is conveniently packed 48 brushes per box for easy storage and use. Model Number: 092312