Practical
I bought these because two new pair of glasses at the end of the year just didn't fit or feel as comfortable as my old pair.<br />I found that they work very well on plastic frames that widen on the side of your nose.  They adhere well and I've used the same pair for almost 3 months now.  I don't fare quite so well with the type of metal frames that have a tiny pad that screws to the frames. Mine were not silicone, but a hard plastic.  I thought these could cushion them for me.  Meh... was okay, but a bit too big to adhere and stay adhered.<br />They were inexpensive and worked for what I needed them to do.
Rating: 5 stars