This replacement heads are for model PT-El006 Phniti Pink Electric Toothbrush.FDA Approved Dupont Bristle - The soft wave-like bristles could clean the the plaques and stains thoroughly.“W” Shape Design - The small replacement toothbrush heads are a good fit for both teenagers and adult.Better Oral Protection - Dentists suggest we should change toothbrush head at least every 3 months to avoid breeding and too much bacteria.What You Get - 4 Replacement Heads and 100% Satisfaction Guaranteed or Money Back Service.