Durable Nylon bristles Flexible handle Safe on any barbell regardless of finish coating Protect your expensive barbell investment by keeping it clean after use Save time by using a flexible brush Flexible Nylon bristle brush easily and safely cleans any barbell without scratching the delicate coating. Cerakote, zinc, or painted barbells are all safe when using the nylon Barbell Brush. Safely scrub your expensive gear after each workout.