Flask Conical 100ml, Socket size 19/26, narrow neck, with interchangeable joint, borosilicate glass-EIS-CH0428C offers a thoughtfully designed, durable resource for hands-on learning. Made of high quality Borosilicate glass Conical shape for spill prevention Narrow Neck. Features interchangeable joint with a 19/26 socket size 100ml capacity. White graduation lines, marked at 50ml, 75ml and 100ml Perfect for any science or home laboratory 100ml capacity, narrow neck conical flask. White graduation lines, marked at 50ml, 75ml and 100ml. Features an interchangeable joint with a 19/26 socket size. No stopper included. Made of high quality borosilicate glass. Flask stands 4.5" tall and has a base measuring 2.5" in diameter.