Keep your laboratory glassware in pristine condition with this comprehensive set of cleaning brushes. The brushes are specifically designed to tubes and other glass containers, removing even the toughest residues. The bristles and sturdy handles ensure that these brushes will be a reliable addition to your lab cleaning tools. 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 -Different sizes: comes in three sizes to accommodate various glass test tubes, ensuring all your lab cleaning needs are covered -Deep cleaning: the soft, dense bristles provide thorough cleaning of test tube -Robust construction: made with ideal nylon bristles and sturdy plastic handles, these brushes are and maintain their shape -Easy to store: each brush features a hanging loop for convenient storage, saving space in your laboratory -Versatile cleaning: ideal for cleaning test tubes and other laboratory equipment and containers, making them highly practical Package list: 6pcs Laboratory cleaning bottle brush