OBD Spearfishing Monofilament Shooting Line is a 2mm diameter quality mono-filament line with 400lb breaking strain. It is available in a choice colours: black or red. Price is for a 15 metre length, but also available in 30m length. Highest quality USA mademono filament with low stretch, high tenacity. Thicker diameter for greater strength and tenacity for larger fish and contact with the bottom. Also good for easier handling.