Are you looking for some laboratory flasks? Take at our flasks, which are made of PP material. They can withstand falling and are not easily . These reusable conical flasks are marked with clear scale lines, easy to observe. And with the stable bottom, reduce measurement error. Features -Color:Transparent -Material: PP -Capacity: 50mL -Size: Approx. 8.00X5.00X5.00cm/3.14X1.97X1.97in -Safe to use: The conical flasks are smooth and round, with no bubbles and burrs, and safe to use. -Clear scale: Designed with clear scale lines which are standard for easy viewing. -Fine workmanship: Featuring good workmanship, easy to use, not easy to break. -Thick bottom: The bottom of these flasks is thick, which will not easy to damage. -Widely uses: Suitable for chemistry, laboratory, research, or science applications. Package list: 5 x Conical flasks