SMITH Weight Lure Sinker Smith Tungsten Bullet Sinker has been renewed! This is a JB/NBC eco-tackle certified product that is great for bass mentors. In addition, we have added a new lineup of 1oz and 1.5oz that are long-awaited by rockfish game anglers using the punching method with heavy cover and salt. The material is high specific gravity (approximately 18) tungsten, which has a small silhouette and high sensitivity. A tube is placed inside the line hole to prevent damage to the line. The weight is engraved on the main body, making it easy to identify the weight even after opening the package.