Made from engineering-grade resin, the Real Avid Smart Bench Block is the perfect addition to your gun-cleaning kit. It won’t mar or damage the finish of your guns and an outside rubber liner keeps the block from sliding on any surface when driving in pins. An internal magnet grabs on to dropped pins to keep them from getting lost. Universal pin hole sizes fit a wide variety of firearms. Inner groove keeps barrels stable during detail work. A 1911 Government bushing wrench included on the backside of the block makes removing bushings easy.