304 Stainless Steel Test Tube Brush Nylon Bristle Ten-Piece Cleaning Brush Set is a professional cleaning tool designed for test tubes, bottles, and various slender containers. Made of high-quality 304 stainless steel and premium nylon bristles, it features corrosion resistance and high-temperature resistance, ensuring long-term use. The ten-piece set meets different specifications, making cleaning no longer troublesome. The soft bristles do not scratch the inner walls of containers, easily removing dirt and residue, and keeping the inside of containers clean and hygienic. It is an ideal choice for laboratories, kitchens, and home use, helping you easily maintain the cleanliness of various utensils.