Picking out a new dart set? Consider how often you throw darts. If you throw at least 3 days a week, then it may be worthwhile to buy darts that are 90 percent or 95 percent tungsten. Darts with a higher tungsten content are more durable, and won't wear down as quickly from skin acid, salty snack residue, etc. The increased durability is worth the increased price of the higher dinsity darts. Plus, of course, the high-density darts are thinner and generally feel better when throwing."