400 size clicker-side spool cover fits most Boss Magnum 197 and 270 as well as Boss Extreme and Dauntless 400N and 400.

500 sizefits most Boss Magnum 870 and 870N reels plus all 500 size models of the Boss Extreme and Dauntless reel series.

600 sizefits most Boss Magnum 665 reels plus all Extreme and Dauntless 600 series size reels.

(1 per package)