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. 1645 Burette with blue line on milk white background, straight stopcockCapacity. (ml)Length (mm)O.D. (mm)Graduated interval (ml) 1045090.0525550120.150750130.1100800180.2