Highlights Replacement brush heads for Sonic-FX electric toothbrushes with deep-reaching bristles that effectively remove food particles from teeth Product Details COVID-19 guidelines may delay shipping. Thank you for your patience. Sonic-FX Replacement Brush Heads (4-Pack) Pack of 4 replacement brush heads Only compatible with Sonic-FX toothbrushes Bristles of varying lengths reach deep to remove food particles W-patterned middle bristles properly clean between teeth Colored rings help family members identify which brush head is theirs For post-purchase inquiries, please contact customer support. View the Goods FAQ to learn more. Fine Print Free returnsDoes not ship to PO boxes/AK/HI/Puerto Rico.Warranties offered with select products are valid on US purchases only.Most orders are delivered within 7 business days from the purchase date. Most Canadian orders are delivered within 7-10 business days from the purchase date. Shipping questions?How is the strike-through price determined? May be repurchased every 30 days. Offer is not eligible for our promo codes or other discounts. Groupon Customer Reviews4.25 Groupon Ratings4.2Average of 5 ratings40%40%20%This deal doesn't have any written reviews yet.Earned when a user has written 5 or more reviewsWant to earn this badge? Share 3 or more photosEarned when a user has gotten 2 or more helpful votes