This laboratory cleaning brush set is an indispensable tool for any lab, ensuring that your glassware remains clean and ready for use. The construction performance. Features -Color:Light Brown -Material:Stainless steel bristle -Size:26.00X3.50X3.50cm/10.22X1.38X1.38in -Size:23.00X3.00X3.00cm/9.04X1.18X1.18in -Size:19.50X2.50X2.50cm/7.66X0.98X0.98in -Assorted sizes: includes three sizes to fit different glass test tubes, catering to a wide range of laboratory tasks -Comprehensive cleaning: soft and densely packed bristles ensure effective of test tube interiors -High durability: constructed with nylon bristles and robust plastic handles, these brushes are designed to last -Space efficient storage: each brush comes with a hanging loop for easy storage, helping to keep your lab tidy -Wide application: ideal for test tubes and other lab equipment and containers, offering great versatility Package list: 6pcs Laboratory cleaning bottle brush