O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Metric Cross Section Shape Round O-Ring Material EPDM Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 10 mm Nominal Width 1.5 mm Actual Inside Dia 10 mm Actual Width 1.5 mm Color Black Durometer 70 Shore A Nominal Outside Dia 13 mm Actual Outside Dia 13 mm Temp Range -70 Degrees to 300 Degrees F FDA Approved No