This infuser might work for other people, you have to hang it over the edge of whatever you are using to make tea in, or you need to totally submerse it in a lidded container. I thought these would be wider? I find them difficult to fill with loose tea. and I am indeed trying to make tea in a closed container like a thermos, which means I have to stick my fingers in there to fish it out afterwards. when I insert these into loose tea, they font really fill on their own, ok act like a scoop, inhave to manually pack them, a little bit at a time. I think i dhould have stuck with a big round metall ball with a screw top.