RELIABILITY: 600lb break strength reel line. This zero-stretch line is perfect for hunting big catches. LENGTH: Each spool contains 150 feet of reel line. An optimal length for filling spearfishing reels. LOW PROFILE: Ultra thin 1.8mm diameter ensures fast shots and plenty of line on reel for fighting fish. HIGH VISIBILITY: Custom lime green and black color pattern is ideal for tracking shots and caught fish. HIGH-PERFORMANCE MATERIALS: JBL Spearguns reel line is made with a woven Dyneema core and abrasion resistant poly-blend overbraid.