The BFT Tungsten Fastach Sinker is a pear shaped and compact sinker attached with a Fastach-snap for a quick attachment. BFT Fastach Sinker is a perfect way to adjust your fishing depth. Attach the Fastach Snap to the nose of your shallow rigged soft plastic swimbaits or jerbaits to enhance the depth of your lure presentation or swimming performance. Made from 97% pure tungsten makes these sinkers compact and fast sinking. Environmental friendly.