Each flask in this set comes with a secure lid, making it easy to store and transport your samples without the risk of spills. The construction ensures that these flasks can withstand regular use in a busy laboratory environment. They are also easy to clean, making them a convenient choice for repeated use. Features -Color:Transparent -Material:Plastic -Size:10.70X6.50X6.50cm/4.21X2.55X2.55in -Capacity: 100 ml -Enhanced stability: the unique design merges the benefits of a conical flask and a flat bottom flask, providing a stable base for your experiments -Clean to use: the included lid helps to prevent liquid spills, keeping your experimental environment clean -Quick evaporation: the triangular shape offers a larger surface area, facilitating faster evaporation and saving time in your experiments -Heat resistant: made from materials that can endure high temperatures, ensuring the reliability and stability of your experimental results -Wide application: suitable for chemistry, biology, and medical experiments, this flask meets the needs of various scientific fields Package list: 5 x flasks