Halcyon Defender Safety Spool The Halcyon Defender series of guideline devices expands upon the time-tested utility of the Halcyon Defender Spools by providing enhanced flexibility and unique operational advantages. Halcyon Manufacturing is well known for guideline device innovations, having pioneered some of the most unique designs in technical diving. The Halcyon Defender Pro series of guideline devices expands upon the time tested utility of Halcyon Defender spools by providing enhanced flexibility and unique operational advantages. The Defender Pro series provides a wide range of valuable features: Nearly indestructible delrin design for trouble-free operation Solid centre that reduces spool size Ease of operation and no risk of catching finger Easy Grip adapter that provides great grip** Optional Freespin and fully locked positions Removable adapter for classic mode and retrofit to any size Defender Pro Available in 100', 150' and 200' sizes (30m, 45m, 60m) with #24 line.
