Replacement brush heads for the gentle and soft type toothbrushes of the Oral B brand (4 black ones)

Ole B hypoallergenic smooth type toothbrush replacement brush head, 4 black ones Only compatible with Oral-B iO toothbrushes The revolutionary iO technology is integrated into every detail of the bristles. The buffering effect of the outer bristles can protect the gums and provide a comfortable oral usage experience. The unique round brush head is equipped with bristles that can individually cover each tooth. Included: 4 Oral B iO gentle cleaning toothbrushes (each toothbrush is packed separately to maintain hygiene) To achieve the best tooth cleaning results, dentists recommend changing the toothbrush head every three months. Oral-B is the number one toothbrush brand recommended by dentists worldwide.