Optic ShopOptic Shop Eyeglass Frame Grips, Hinge Tighteners - 4mm Inside Diameter, 48 Rings in Each Package

Love these. They are functional and inexpensive! You can NEVER have enough of these!

As much as I hate it I do tend to always have a pair of readers on my head. I had bought a 6 pack of readers awhile back but wouldn't wear because they always slid off my face or my head when bent over. Unfortunately I lost the only pair I had that didn't fall off so I was left with the ones I wouldn't wear. I used a heat gun to try and bend the ear pieces but I think all I accomplished was bending them to the point they sat crooked on my face. Enter these little rings and no more slippage. They're not overly tight but tight enough to keep them put.

I purchased new eyeglasses every year and my measurements are always spot on but this year I ordered a pair and they just fit way too big. I had them adjusted and bent at the optometrist and they never fit quite right still they were very wide. I was looking for a solution and this is definitely it. I didn’t even know something like this existed, but I am so glad that it did because now I can wear my cute glasses without them, falling off of my face when I look down, they are so easy to slide on to the and just fit perfectly there . The glasses can still close and open just as normal, but they just fit so much better. Such a great buy so that I can wear my expensive glasses with this little inexpensive fix.

Worked ok to tighten loose sunglasses. I had to use 2 to tighten. Putting your sunglasses on your head loosens them. O

These rings are very small but I was able to slip them on my glasses without a problem. They fit neatly in the hinges and snugged up the glasses.

For some reason, the style of my eyeglasses the temples were wider than my head. I went to the eye glass provider, and they tried the "heating and bending" and just didn't work. I love the glasses, so I ordered these. They simple slip down the temple and over the hinge causing a tighter fit. Works great!

These are too small, hard in texure and almost impossibl to get on. Once accomplished, it does not work - folds like there is nothing there. The next tough part is getting them off (I used 2) - these are not even keeping for an extrem amergency.

I have a number of "readers" that were in need of tightening so they wouldn't slide off. The eyeglass kits only have two each and I needed more. The original package was barely a plastic sleeve so there I had to find something to put them in once I had opened the package as they were too small to just leave as is.