Straw Brush Handheld Nylon Bristle Medical Tube Cleaning Brushes - Medical Device Tube Cleaning Brushes And Pipe Cleaner Size: 195 mm x 5 mm x 5 mm For effective cleaning of test tubes in laboratories, these test tube brushes with nylon bristles are mounted in twisted heavy gauge galvanized wire Material: the product is made of stainless steel, has good flexibility, corrosion resistance and rust resistance, the head is wrapped with nylon material, does not hurt the hand How do I replace all the spaces with in C#? Asked 16 years, 4 months ago Modified 1 year, 4 months ago Viewed 142k times It is a good helper in your life! Justman Brush Tube Brushes - Nylon, Brass, Stainless Steel & HCS Design: the product tail with ring hook design, easy to store after use