I wish I had done this years ago. I've always used generic ear plugs but I felt like I was not protected. The generic plugs are uncomfortable, difficult to insert and do not work for me. Coming away with ringing ears after 2 days of snowmobiling finally pushed me over the edge. I made an appointment for custom fitted hearing protection with an audiologist at East Central Audiology in Forest Lake. The audiologist squirts a gel into each ear that conforms to the shape of your ear canal. In a few minutes the gel hardens, is removed and sent off to Starkey Labs, where they manufacture the ear plugs you see here. I can use them in the wood shop, snowmobiling, shooting or running a chain saw. I would even bring them along if I ever went to a rock concert again. Once you get the hang of it they insert easily. They are very comfortable and stay put. They are easy to clean. The string is handy for removal and makes them a lot harder to lose. They cost me $160, which I was able to pay using our medical plan flex spending account. You should get a pair of these too. Or you could wait and be fitted for Starkey Labs hearing aids later.