Fit and Design: American Fishing Wire sleeves the preferred choice of professional leader, lure, and tackle manufacturers High strength and burr-free to reduce lost fish, Perfect for Surflon and Surfstrand wire Technology: Burr-free nonabrasive finish High strength and corrosion resistance Additional Details: WARNING: This product can expose you to chemicals including DEHP, Lead and Nickel, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to: www.P65Warnings.ca.gov.