All the negative reviews of this spare toothbrushes are correct. The brush dissolve during cleaning of the main unit and are actually after about five days break. Of course, the low price is suspicious, but a so so bad goods is not expected then. Only positive aspect: The purchase price and the postage costs have been reimbursed after complaint immediately. Probably in order to avoid major uprising, the amazon u. U. had roused. I will try to report them over poor quality directly from Amazon. These things have to get out of the sale, absolutely! I feel cheated despite the repayment!
