This Schott Duran 500mL Graduated Media Storage Bottle is made of high-quality Borosilicate Glass 3.3 and is manufactured in Germany by SCHOTT. The bottle has a GL45 cap and is suitable for use in Physical Laboratory, Dental Laboratory, Medical Laboratory, Microbiological Laboratory, Biological Laboratory, and other laboratory settings. This Glass Graduated Aspirator Bottle is perfect for storing and measuring liquids with precision. The bottle is in used condition, but it is still in great shape and ready for use. This item is great for anyone looking for used laboratory surplus chemistry glassware.