B12/21 GLASS HEX STOPPER, Pack of 10

B12/21 GLASS HEX STOPPER
 
Glass stoppers ideal for use with volumetric flasks
This range of ?B? length glass stoppers features a ?drip-tip? on the lower closed end of the stopper.
 
Ideally suited for use with volumetric flasks etc.
Lower closed end of stopper features a 'drip-tip' to ensure adhered liquid is returned to the flask
Hexagonal head prevents the stopper from rolling and provides a good grip
Flat head allows stopper to be stood on end, thus preventing contamination of the ground surface
Hollow-blown to reduce weight