O-Ring, No Metal Detectable, No X-Ray Detectable, System of Measurement Metric, Cross Section Shape Round, O-Ring Material Viton, Durometer (Hardness) Rating Medium Hard, Nominal Inside Dia. 6 mm, Nominal Width 2 mm, Actual Inside Dia. 6 mm, Actual Width 2 mm, Color Black, Durometer 75 Shore A, Meets/Exceeds FKM 75, Nominal Outside Dia. 10 mm, Actual Outside Dia. 10 mm, FDA Approved No, Package Quantity 50