Bio-Kleen's Polish Ball is designed for polishing and buffing metals, clearcoats, and fiberglass. The 4" diameter ball is made with soft, durable fibers that will last a lifetime. It is effective and safe on a wide range of surfaces and built to last. Performs excellent on both smooth and textured surfaces. Its flexible design fits into tight, hard-to-reach areas to make any difficult polishing job quick and easy. Connects to any common drill. Washable and reusable.