It is sturdy and holds all sizes of glasses. These are Omron switches rated for 50 million clicks so youll be good for longevity. When they work, its great, but its getting to the point already where its dropping more than playing. Contacted Allen Sports and sure hope they are helpful because I need to use my hatchback and get this off my car so I can return it. Remember about space, which will be needed to fit the protruded shoes. Im including a picture of all 3 tips, along with jelly beans, on a post-it note for scale reference. The description says up-to 40 hrs, given the results and the volume level was set between 40 to 50%. Theyre attractive and well-made, and the fit is perfect. Even in my house I wear them because, well, its Florida and sand is everywhere (I live by the beach too, which makes it worse). Fue un regalo y Lamentablemente no me lo mencionaron a tiempo para hacer la devolución :/