Troy offers an array of attachments for many exercises uses, including Curl Bar with Swivel, Lat Bar with Rubber Grip, Spreader Bar, Butterfly Tri-Bar and the Cable Curl Bar. These attachments are precision engineered with forged steel revolving swivels to provide smooth fluid & continuous rotation, minimizing pulley maintenance & extending 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.