works as described with only minor concern [SEP] so these certainlty work the reason i gave them stars vs is that while using them in constantly concerned i am going to choke on them i do not know if there is a way to have them be connected but free floating as they are makes me leery they work like they are supposed to i have seen definite change in my has profile from regular use i do recommend them i simply cannot get over the concern of it being a choking hazard