The long-awaited ultra-fine PE line powers up muscle PE! +Si3 makes it even more resistant to costumes! ■Muscle PE (high-density PE)...Densely woven, the quality of the thread is greatly improved. "Resistant to abrasion/Improved durability/Reduced noise/Increased flight distance." UVF processing (ultra high density fiber processing) increases strength and sensitivity. ■Highly sensitive PE line that conveys even small hits. ■+Si3 processing further reduces water wicking into the reel!