Compact head, soft brushless but occasional odd noise
I like everything about these Grasnugie Replacement Toothbrush heads but I have this concern. Grasnugie Replacement Toothbrush heads ​fit so tight I'm concerned I may damage my Sonicare 7700 Expert Clean toothbrush. Sonicare toothbrushes haven't lasted long for me; they lose vibration and get loud before failing completely. Anything that fits tightly and doesn't easily remove concerns me. I don't want a short lived toothbrush with Sonicare pricing.
Rating: 4 stars