You are viewing one (1) each previously-owned 3-necked Pyrex 250 mL flask; heavy wall, round bottom, ground/tapered 24/40 joints, vertical orientation, short necks, in good condition. Note: Cork stand is not included in this sale. We also have other sizes and models available (inquire separately if interested).Shipping Weight (for one flask): Approximately 3 lbs., including packaging.Quantity Available: 1