Toothbrush heads – This pack of refill brush heads fits any Colgate ProClinical toothbrush Whitening – Replacement brush heads whiten teeth in one week* and contains spiral bristles that help remove surface stains Soft – Specially designed soft bristles to be gentle on your gums and minimise damage to the soft tissue Polish – Get your teeth polished while you brush with the rubber cup between the bristles that polishes your teeth *By removing surface stains