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 1/16 in Nominal Width 3/32 in Actual Inside Dia 0.049 in Actual Width 0.103 in Dash Number 102 Color Black Durometer 70 Shore A Meets/Exceeds ASTM D2000 EPDM 70 Nominal Outside Dia 1/4 in Actual Outside Dia 0.255 in FDA Approved No Package Quantity 50