5 basic brushes for the beginning science lab. Includes 1 test tube brush, 1 bottle brush, 1 cylinder brush, 1 flask brush and 1 beaker brush. Made of soft natural boar bristle, except for the beaker brush, which is soft black nylon bristle. All bristles are wrapped in galvanized wire to stay strong and secure use after use. Flask brush has curved plastic handle to reach to the bottom edges of an erlenmeyer flask, and the beaker brush features a rounded solid wood handle.   

Features:

• 5 essential brushes for the beginner science laboratory
• Off white, natural bristles are strong and clean well, yet resist scratching
• Black nylon bristles provide strength without scratching
• Small Test Tube Brush (3000) measures 230mm OL x 10mm L x 20mm W
• Small Bottle/Tube Brush (3014) measures 273mm OL x 95mm L x 37mm W
• Large Tube/Cylinder Brush (3020) measures 285mm OL x 125mm L x 35mm W 
• Small Flask Brush (3044) measures 280mm OL x 112mm L x 35mm W
• Small Beaker Brush (3037-13) measures 330mm OL x 160mm L x 89mm W