Material:borosilicate 3.3 glass We specialize in laboratory glassware,main products:beaker,funnel,conical flask,boiling flask,burette,connection tube,test tube,gas washing bottle,separatory Funnel.etc. 1655 All Automatic Burette TypeJ715, with ground-in reservoir Capacity. (ml)Graduated interval (ml)Capacity of reservoir (ml) 100.05500250.11000500.12000