Precision engineered forged steel revolving swivels provide smooth fluid & continuous rotation to minimize pulley maintenance & extend cable life. All bars attach quickly & easily to a simple S hook or snap link. Top quality 1020 cold rolled steel, triple chrome plated & polished to a mirror finish. Craftsmanship that assures the highest quality & value with knurling that is consistent and uniform. Perfect #18 diamond knurled gripping surface gives positive grip & provides maximum comfort.