This radial tipped test tube (or bottle) brush with a formed brush spray has high grade nylon for performance and durability. It is designed to enter the narrow mouth of tubes and then expand. This allows the brush to thoroughly clean the bottom and corners of the glassware without scratching with the wire tip. Scratched glass is more prone to break during experiments, especially when the piece is heated.
- Brush is a total 9 inches long.
- Brushes are 4 inches long by 1 inch in diameter in white nylon.
- Twisted wire handle with hanging loop.