Review on 🦷 Sonicool Electric Toothbrush Refill for Enhanced Cleaning by Balakrishna Tam

Just opened my 4 pack of Sonicool replacement brush heads. I bought in September 2019 and only opened a year later on 09/22/20. Three interchangeable heads, not four. What have I learned? Open each package on the day it arrives in case you need to make a complaint! These work for me. I currently have no teeth as they were all removed in July and September 2019 to replace new teeth. You must continue to gently brush your gums, tongue, and the rest of your mouth. I would like to see a curved brush so it can reach the upper (and lower) palate and behind the upper (and lower) row of teeth.