DescriptionMade of eco-friendly glass material, durable, safe and odorless. Standard capacity: clear scale, easier to identify for accurate measurement. No bubbles, no burrs, smooth and rounded. More convenient to use for students in school laboratory when doing experiments in chemistry class.Features- Color: Transparent . - Material: Glass. - Size: 14.80X8.50X8.50cm/5.82X3.34X3.34inch.- Capacity: 50ml. - Designed with silk-screened graduations, ground-in stopper, and extra-large marking area. - Heavy duty glass uniform wall thickness distribution,durable and practical. - Widely used for education, chemistry, research, or life science applications. - Well made of premium borosilicate glass with minimal thermal expansion, giving relatively high resistance to temperature changes. - High temperature resistant and chemical resistant, practical tool in your laboratory.