The Ringer Swivels LIVE Bait Swivels – 25pk are precisely designed to fit the industry standard #8 UV Bands. These have the same strong O-Ring as the Size #1 Ringer Swivel and are typically used with 6/0-9/0 circle hooks. Rigged with a Ringer Swivel the bait is able to freely rotate independently of the hook, resulting in a healthier more natural swimming bait presentation.