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. 2 13/16 in, Nominal Width 3/32 in, Actual Inside Dia. 2.8 in, Actual Width 0.103 in, Dash Number 149, Color Black, Durometer 70 Shore A, Meets/Exceeds ASTM D2000, EPDM 70, Nominal Outside Dia. 3 in, Actual Outside Dia. 3.006 in, No, Package Quantity 10