The Philips HX6042/33 Sonicare brush heads in Aqua color are specially designed replacement heads for Philips Sonicare electric toothbrushes. These brush heads feature advanced bristle configuration for effective cleaning and come in a pack of two. Key features: • Compatible with Philips Sonicare electric toothbrushes • Aqua blue and white color scheme • Contoured bristle profile for thorough cleaning • Click-on design for easy replacement • Engineered for optimal sonic motion • Pack includes 2 brush heads The Philips HX6042/33 brush heads are designed to work with Philips Sonicare's sonic technology to provide effective cleaning. The bristles are arranged in a contoured profile to better reach between teeth and along the gumline. The click-on design allows for quick and easy replacement of worn brush heads. For best results, it is recommended to replace brush heads every 3 months.