The original and World’s best selling American made swivel. Our swivel is made of Brass to ensure it spins easily to minimize line twist, while maintaining high strength.Black Finish (C Series):New Item No.OldItem No.Lb. TestSwivels/Pack802-12CRBS-50-Z-12BL2014802-10CRBS-50-Z-10BL3014802-7CRBS-50-Z-7BL7513802-5CRBS-50-Z-5BL9012802-3CRBS-50-Z-3BL10011802-1CRBS-50-Z-1BL1509802-2/0CRBS-50-Z-2/0BL2256802-4/0CRBS-50-Z-2/0BL3506WARNING: Cancer and Reproductive Harm -www.P65Warnings.ca.gov