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Volume 20ml: 50pcs of Vol.20ml / 20x150mm glass test tubes in total.
Premium material: These tubes are made of autoclavable medium borosilicate glass material, well annealed, resistant to heat, and chemically stable.
Plain and Cylindrical: These tubes are in cylindrical type and plain, 1.0mm-1.2mm thick, they are uniform bottoms, fire-polished rims, consistent lengths, and convenient for use.
Good Chemical Durability: These tubes will withstand thermal shock and chemical attack, reduces pH changes and contaminants leached from soda lime glass tubes.
Great for scientific experiment, storing powder or liquid, also could be used for grow plants, festival party decoration, home embellishments.
Tips: Please understand that the glassware are fragile, so please do not hesitate to contact us for refund if you receive products cracked during transit, your feedback and suggestion are valuable for us. These multipurpose glass tubes are made of medium Borosilicate material, meet ASTM E982 specification, Type II requirements. They have good chemical durability, could be used for mixing heating and/or holding small quantities of chemicals for assays, as well as tissue culture, blood banks, and other laboratory experiments. Some people also used them in the classroom, for crafting or storage or even in the kitchen to hold spices, coffee beans etc. Thanks for your trust and purchasing Utile Products.