About this item:
Package contains: Borosilicate glass beakers in 8 sizes (25/50/100/200/250/400/500/1000ml), 4 glass stirring rods (25cm/ 9.84inch). 
Product material: The beaker is made of high quality 3.3 borosilicate glass (GG-17), laboratory grade glassware. 
Product features: Resistant to high temperature, acid and alkali resistant, with good stability. 
The beaker is suitable for mixing heated liquids, and the scale is clear and easy to read. The glass rod helps to drain and stir. 
A wide range of sizes, easy to clean, and the best gift for experimenters, perfect for school projects, home labs or science-themed birthday parties.