Bass Pro Shops Barrel Swivel with Interlock Snap keeps your line free of twist. Speeds rig changes. Sizes:24 (9-lb. test), 22 (11-lb. test), 20 (13-lb. test), 18 (15-lb. test), 16 (18-lb. test). Colors: Brass, Black. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Barrel & Crane.