The glass-reducing connecting adapter is essential in laboratories and industrial settings where compatibility between glassware with different joint sizes is required for efficient and safe experimental procedures.SpecificationColor: TransparentMaterial: GlassTop Joint: 24/40Bottom Joint: 29/42Total Size: 32x98mm / 1.26×3.86″ (OD*L)Package List: 1 x Glass Reducing Connecting AdapterAdvantagesMade of thick borosilicate glass material, it is corrosion-resistant, high hardness, high temperature resistant, low expansion coefficient. The uniform wall thickness makes it better for chemical experiments and ensures a tight and secure connection between glassware, preventing leaks or spills during experiments.