Pack of 4 violet replacement brush heads designed for Sonic+ electric toothbrushes. Individually rounded bristles cup and gently clean each tooth, while a silicone polishing element helps improve surface finish. High-quality bristles provide a gentle yet effective clean and a simple click push-fit makes installation quick and secure. Rinse each head before first use and after every use. Replace every two to three months or sooner if bristles become frayed. Measurements: Length 6.1 cm, Width 6.1 cm, Height 17.6 cm, Weight 0.05 kg.