The Reins TG Tungsten Nail Sinkers are used to fine tune your presentation. Need to add a little weight to the right side? No problem, just press the Nail sinker where you want it. Don&';t want a slip sinker, but need to add weight to the tip of your worm? Push in a nail sinker. It can be soft baits, wacky-worming or for fine tuning, there is always a perfect tungsten nail sinker to handle the job. Reins nail sinkers are made up of 95% tungsten and 5% nickel alloy making them 1.8 times as dense as lead and environmentally safe.