Kimble 40500-250 Kontes Solid Glass Stirring Rod, Length x Diameter: 250 x 6mm

"· KIMAX® solid stirring rods with rounded ends · Designed from Federal Specification NNN-R-560, Type I requirements · Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements"