The Philips Sonicare HX6032/90 replacement brush heads are specifically designed for children aged three and older to ensure a gentle yet effective cleaning experience. This set includes 2 brush heads in white and blue, featuring soft bristles that carefully remove plaque while remaining kind to developing teeth. To make brushing more comfortable, these heads include rubber moulding that provides a softer feel against the cheeks and gums during use. They utilize a simple click-on system for easy attachment to 2 handles of the Sonicare for Kids range and are compatible with Fluid Action technology. To maintain optimal hygiene and cleaning performance, it is recommended that you replace the head every three months.