Easy Clean brush head is the original brush head for Oclean Ease Rechargeable Electric Toothbrush. It can gently and effectively remove plaque. Gentle on gums and tough on plaque. Diamond-shaped Bristles. Effectively clean plaque between teeth. Soft Rubber Coating. Comfort and prevents tooth damage. Delicate Tongue Cleaner. Silicone texture on the back of the brush head can clean the tongue, providing more delicate oral care. Dental professionals recommend changing your brush head every 2-3 months. Compatible with all Oclean toothbrushes. Bristle firmness: Firm