Akron 4-Hole AMPS to 17mm G-Ball Adapter
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Examples on how to use the iBOLT (IBPB-33880)25mm AMPS Plate
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Arkon
{"Package Dimensions": "2 x 2 x 1 inches", "Item Weight": "1.58 ounces", "Manufacturer": "Arkon", "Item model number": "APAMPS17MM", "Is Discontinued By Manufacturer": "No", "Date First Available": "May 6, 2016"}