i went to eckerd today and was planning on getting the hearos hi-fi series plugs but they were out of em so i went and tried out these eckerd plugs. they looked like wax and they were different so i tried them out and these things are great. they say they are silicone but they look feel and smell like wax. but it came with six of them and you take one out and you roll it into a ball, then you just shove it in your ear. it dosnt expand or anything but just sticks to your ear and covers your cannal. but its like pluging your ears with your fingers. it quits things down alot it really kicks the foam ones butts.