The Fox 12000 XC Spare Spool is available in three versions to suit different fishing styles and line requirements: shallow, standard, and deep. Each spool is designed to fit the Fox 12000 XC reel, letting you switch line types or diameters quickly without respooling your main reel. - Shallow spool capacity – 0.30mm 350m, 0.35mm 255m - Standard spool capacity – 0.35mm 355m, 0.40mm 290m - Deep spool capacity – 0.35mm 515m, 0.40mm 420m