Features: - Replacement toothbrush heads compatible with electric toothbrushes, providing exceptional brushing experience. - Featuring a contoured profile to naturally fit the shape of your teeth and to clean hard-to-reach areas and maximize sonic motion. - Diamond-shaped bristles in a high-density pattern, effectively removes up to 2 times more plaque than a manual toothbrush. - Effectively removes plaque without irritating gums. - Soft and tippy, extending into the depths of teeth, effectively remove bacteria. - High-speed rotating, slight vibration, can promote oral blood circulation and massage the gums organizations. - Suitable for all people, protecting the dental health. - Nylon bristles for offering exceptional cleaning of tooth surfaces and deep between the teeth. - Just simply replace brush heads as usual. - 20pcs, each weight: 0.003g, each size: 8.5cm x 1.7cm x 1.5cm.