Ekulf ph is an easy to use interdentalbrush that has successfully been proven on markets worldwide every brush has between 400 600 small brush fibers tynes from dupont that ensure an optimal cleaning effect between the teeth each blister package contains 12 brushes in each blister package we have enclosed a grip enlarger for even better control the cap can both be used as a handle enlarger or as protective cap for the brushhead high effective cleaning between teeth 400 600 filam