Best Seller: Daiwa Sensor Bulk Spool from £8.99 - With a reputation for exceptional reliability and rugged performance, Daiwa Sensor Bulk Spools deliver amazing durability, suppleness, consistent diameter, and superb knotting. Designed to high quality and level of performance as sensor has been accredited. The sensor bulk spool from Daiwa is without a doubt the number one monofilament line in the UK.