THE BENCH BLOCK EINSTEIN WOULD VE USED Made from engineering-grade resin, this block won t mar or damage your favorite guns and the outside rubber liner keeps the block from sliding on any surface when driving pins. And inside the block is a magnet that grabs dropped pins. It s so intelligently designed, you ll feel smarter just using it. PRODUCT OVERVIEW Embedded magnet holds small pins securely Universal hole sizes accommodate most pin removals Non-slip outer ring steadies block during use Central groove steadies barrels Work surface made of ultra-tough engineering resin 1911 government model barrel bushing wrench on back side