Heavy duty marine grade stainless line swivel suitable for dive reels and spools. Precision jointed design delivers smooth 360° rotation to help prevent line twists and bird nests even during high-speed deployment. The {0.12 in | 3.1 mm) bores on each end easily accept our Hi-Viz line as well as large enough to accept #24 'cave' line and even 'wreck' line as thick as #36.