Stainless Steel Anchor Swivel for Chain Size 1/4"-5/16"316 stainless steel swivel anchor connectors are designed to easily slide over anchor rollers, preventing snagging, minimizing wear on the bow roller and windlass. These precision, high quality swivels feature double locking pins for extra security. Can be used between anchor and chain or between chain and line.Specifications: Chain Size: 1/4" to 5/16" Strength: 5500lbs Material: Stainless Steel Length: 3-9/16" Width: 5/8" WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.