LEAD-FREE - Poly-coated steel wheel weights contain no lead, making them safer for the environment and compliant in areas where lead is prohibited. EASY INSTALLATION - Malleable poly shield allows a precise and tight fit against the rim and provides smooth installation. SCRATCHLESS APPLICATION - Poly molding provides a buffer between the steel core and softer alloy wheels. Poly coated weights go on and come off the wheel without damage or scratching. AESTHETIC APPEAL - Provides the benefit of a steel weight with superior appearance. SUPERIOR CORROSION RESISTANCE - Poly coating provides protection against corrosion and abrasion. Steel clip also has a protective coating.