Order received in due time from Amazon and packaged very well as usual. 1st use to me an electric toothbrush! Used upon receipt. Small pretty impressive from vibration (with a feeling of being at the dentist with strawberry)! But soon, we made it and it is true that from the first tooth brushing, sharpness sensation is felt! I think at 2 brushings per day (as I usually do) I will quickly see the difference! I actually feel like scaling process to the dentist. I recommend the product and the seller. Thank you
