Made from engineering-grade resin the smart bench block won't mar or damage your favorite gun and its non-slip outside rubber liner keeps the block from sliding on any surface when driving pins.The smart bench block has an embedded magnet universal hole sizes central barrel grove and a 1911 government model bushing wrench.Type: Bench BlockBlade Type: Polymer/PlasticBlade Length: CompactHandle Description: PistolWeight: 1911Sharpener Type: 1