Pack of 8 Replacement Brush Heads - Included eight substitute toothbrush heads,there are 4 color rings to distinguish them. Good Quality Bristles - The toothbrush head is designed with delicate DuPont bristles, excellent for cleaning deeply,Making your brushing task extra comfortably. Deeply Cleaning - Greatly feel while the moving strength tip penetrates tough to reach destinations and desk bound bristles teeth surfaces.