What You Will Get: package includes 20 pieces of glass beakers, about 1.18 inch(30mm) wide, 1.12 inch(28.5mm) long, 1.50 inch(38mm) high, capacity: 10ml(0.34fl. oz), inner size: 0.89 inch(22.5mm). Sturdy Material: the beaker measuring cups and science glass sticks are made of quality borosilicate glass, which are thick, reliable and stable, will serve you for a long time Clear Scale: measuring beaker sets feature with scale, clear mark on the side, simple to read, make measurement and storage more convenient and accurate Easy to Use: each lab glassware has a dumping port that even children can easily use. Nicely Suitable for Experimentation: with a variety of sizes and easy to clean, this borosilicate glass beaker set is ideal for any occasion, including school projects, home labs or science themed birthday parties; Fine workmanship and safe materials make scientific experiments easy and successful