Narrow neck storage bottl., glass stopp., DURAN®, clear glass, 50 ml, 1 unit(s)Narrow neck storage bottl., glass stopp., DURAN, clear glass, 50 ml Material: DURAN glass. Autoclavable: yes. Acc. to DIN EN ISO 4796 2. With NS glass stopper, solid glass (NS 10 to 24) or semi hollow (in NS 29 or larger). With retrace code. Technical Information Vol. 50 ml external 42 mm Height without closure 80 mm Standard ground glass joint 14 15