seems ok but they are copies not waterpik brand [SEP] the flexible tips are slightly smaller than the genuine waterpik tips seems to work fine i just hope there are no harmful adhesives or plastics used to make these cheaper versionsthe seller included a limited time deal where i can get a gift card for leaving a review and emailing him a snapshot i am not a fan of that kind of promotion and i do not want him having my email address so i will not be claiming it i looked up whether amazon allows such promotions and as far as i could see they do but i may have missed something