I purchased these ear plugs because I have a TBI. Having earplugs is a necessity in my life, and I am always loosing or forgetting where I put them. So, I purchased this pack which has plenty of them. I have placed a pack in every vehicle, I ride in often. They are great at reducing the noise, and keeping my head from freaking out! I love that they come in storage cases. And can be worn in the water as well.