Stainless Steel Detail Brush Stainless steel bristles provide strong, aggressive, abrasive cleaning. Bristles will last long Easily removes dirt from creases, crevices and recessed areas. Brass Detail Brush Brass bristles provide tough, aggressive cleaning with mild abrasiveness. Easily removes dirt from creases, crevices and recessed areas. Nylon Detail Brush Stiff nylon bristles provide gentle cleaning. Easily removes dirt from creases, crevices and recessed areas.