Free Shipping!! We offer the finest quality speargun mono available. It is super strong yet flexible enough to resist kinking. This spearfishing mono works best when crimped with our aluminum crimps. If you are using sharkfin speargun shafts, it is also recommended that you use our anti-chaffing springs to make sure you don’t lose that hard charging fish of a lifetime. Our mono is sold in 100 or 300 foot ready packs. Choose from 250, 300 or 400 lb strengths in red or black.