Johnsons Baby Toothbrush is manufactured with a baby's delicate gums in mind. It's designed with ultra-soft TYNEX bristles to protect newborns' fragile gums. It is incredibly light and easy to handle, with a large holding area for the moms' convenience. The brush is suitable for babies aged one to five years. That's why this brush has a slip-proof design that prevents the brush from slipping and injuring children's gums even when they use too much power.