Designed especially for sea anglers and tournament casters the colour of tournament monofil is a familiar sight all around the UK. Extremely durable it offers excellent breaking strain for its diameter Daiwa Tournament Monofil - High Shock Resistance - High Knot Strength - High Visability 8lb is 0.26mm- 10lb 0.28mm 1540m Per Spool - 12lb 0.31mm 1320m Per Spool - 15lb 0.35mm 1040m Per Spool - 18b 0.40mm 740m Per Spool - 20b 0.43mm 660m Per Spool.