Brand PHILIPS Colour White Size 8 count (Pack of 1) Age range (description) Adult Item firmness description Hard   Optimized for Peak Performance: The toothbrush head's contoured design perfectly conforms to your teeth's shape, ensuring it cleans those difficult-to-reach spots effectively. Doubles Plaque Removal Efficiency: Capable of eliminating up to twice the plaque compared to manual toothbrushes. Enhanced Sonic Action: Utilizing Philips' advanced sonic technology, this brush head propels fluid deep between teeth and along the gumline to dislodge plaque, while its brushing motion efficiently clears it away. To maintain optimal performance, remember to replace the electric toothbrush heads every 3 months, as bristles can lose stiffness and wear down over time.