Oral B Pro 570 Sensi Ultra Thin Electric Toothbrush with Refill Head Experience the Oral-B Sensi Ultra Thin toothbrush head designed by the #1 dentist recommended brand worldwide Oral-B. The round petal shape is designed with dentists. It has soft, ultrathin bristles that are gentle on gums, combined with regular bristles that are tough on plaque. Sensi Ultrathin removes up to 100 percent more plaque and reduces gum inflammation by 100 percent compared to a manual toothbrush. The distinct combination of end rounded and ultrathin bristles make Sensi Ultrathin ideal for everyone with a sensitive mouth and everyone who is looking for just a great gentle clean. Key Features: Removes up to 100 percent more: Plaque for healthier gums vs; a regular manual toothbrush. Reduces gum inflammation: By 100 percent vs a regular manual toothbrush. Oral-B the #1 brand: Used by Dentists & approved by the Oral Health Foundation Direction: Dentists recommend replacing your toothbrush head about every 3-4 months, or when bristles are faded and worn. Oral-B offers a variety of toothbrush heads to fit your personal oral health needs. Please Note: This product comes with a two-pin UK plug. This is suitable for two-pin UK electrical sockets, which are often found in bathrooms.