The bristle brushes are specifically designed to tackle the unique cleaning challenges posed by laboratory glassware. Their flexible bristles can navigate the contours of flasks and reagent bottles, ensuring that cranny is thoroughly cleaned. This helps maintains the integrity of your experiments. Features -Color:Assorted Color -Material:Stainless steel, bristles -Size:30.00X6.50X6.50cm/11.79X2.55X2.55in -Size:25.00X6.50X6.50cm/9.82X2.55X2.55in -Size:20.00X5.50X5.50cm/7.86X2.16X2.16in -Effective cleaning: the bristle brush is effective in cleaning flasks, test tubes, and reagent bottles, ensuring your lab equipment is pristine -Robust construction: made from materials, this brush is robust and resistant to wear and tear, providing performance -Scratchfree bristles: the soft bristles are designed to clean without scratching, preserving the integrity of your laboratory equipment -Thorough cleaning: the unique brush head design allows for thorough cleaning of all areas, ensuring no dirt or residue is left behind -Multifunctional use: suitable for labs, this brush is a multifunctional tool for various laboratory cleaning tasks Package list: 3PCS Test Tube Cleaning Brushes