Tab Lock BaseAllows for easy removal and replacement of Lake-Troll, Sport-Troll, Easi-Troll, and Mini-Mag downriggers. Built with heavy-duty Lexan for corrosion and UV resistance.WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.