Part Number: 231B-A626. Package Includes: as images show, 1 Anvil Assembly, includes the socket retainer and O-Ring. Compatible with: Ingersoll Rand 1/2" Anvil Assembly For I-R Models IR Models 2135Ti, 2135PTi, 2135TiMAX, 231C, 232TGSL, 232TGTI and more. A brand-new, unused, unopened, undamaged item in its original packaging. Return refund: If you have any questions, you can refund in full without any problems