O-Ring No Metal Detectable No X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material EPDM Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 7 in Nominal Width 1/8 in Actual Inside Dia 6.984 in Actual Width 0.139 in Dash Number 262 Color Black Durometer 70 Shore A Meets/Exceeds ASTM D2000 EPDM 70 Nominal Outside Dia 7 1/4 in Actual Outside Dia 7.262 in FDA Approved No Package Quantity 10