Glass Tubes 4 Inches Long, 20Pcs 12mm OD 2mm Thick Glass Borosilicate Blowing Tubes with 2Pcs Cleaning Brush

JoyTube Glass TubesColor: ClearMaterial: BorosilicateBorosilicate Glass Tubes have high heat resistance, acid and alkali resistance, and good stability.Can be made into DIY crafts, laboratory glassware, pharmaceutical glass tubes, cookware and kitchen utensils, optical equipment, glass straws, semiconductor production, etc.

• 【Material】Glass tubes are made from borosilicate glass. The chemical composition of borosilicate glass gives it strong resistance to hydrolysis and durability against aggressive substances. The low coefficient of expansion and excellent thermal shock resistance also add to its versatility, and the smooth surface also offers impressive scratch resistance. It’s a quality material for glass blowing.
• 【High Quality】Glass tubes feature fire-polished ends for safe and easy handling. (Note: This tubes can be safely used in microwave ovens and dishwashers)
• 【Multifaceted Usage】these are not just ordinary glass blowing tubes; These borosilicate glass tubes also serve as ideal glass test tubes suitable for laboratories, schools, and factories; In addition to professional use, do not limit your creativity as they can also be applied as drinking straws or for various DIY projects.
• 【Proper Size】each borosilicate glass tube measures approximately 4 inches/ 10 cm in length, 0.47 inch/ 12 mm OD, 0.31 inch/ 8 mm ID and 0.08 inch/ 2 mm in thickness, which is the ideal size for various institutional and personal needs; The package comes with 20 glass tubes of the mentioned dimension along with 2 cleaning brush, thus ensuring you are well equipped for your tasks.
• 【Packaging Includes】20 x Glass Tubes; 2 x Cleaning Brush.