Description Are you looking for a professional, yet affordable glass flask? Are you in search of a sturdy, trustworthyglass flaskthat can help you exercise chemical research ? If yes, look no further! Our professional glass flask must meet your needs. It is one of the best choices for you. Features - Color: Transparent. - Material: Glass. - Size: 17.00X8.50X8.50 cm/6.68X3.34X3.34 inch. - Capacity: 250ml. - Note:whether the bottle contains text is random. - The transparent appearance design of this flask is simple and generous. - Uniform wall thickness is suited for heating, geometry permits very uniform heating. - Widely used for education, chemistry, research, or life science applications. - Boiling flask is used in laboratory for more prolonged boiling of liquids. - Transparent bottle body design makes it easy to observe the change and residual of inner liquid. Package list: 3 x Flat Bottom Flasks