The Berkley FireLine Ultra 8 Superline was developed by Berkley scientists as a thermally fused strong 8-carrier Dyneema PE fiber braid. Not only is this line one of Berkley's most durable lines to date, but it is incredibly sensitive. The fused 8-carriers make up a tough line that is four times more resistant to abrasions than the normal FireLine! Get ready to feel those lighter strikes with the Berkley FireLine Ultra 8 Superline!