I've had pierced ears for 40 years. I own a LOT of earrings! Nothing makes me more frustrated than to loose a favorite earring because the collar of a sweater or blouse "pushed" and French or fish-hook earring back up and out of my ear lobe because the translucent protector had, unknowingly, slipped off.

I checked the "small" version of this item,&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Earring-Backs-Safety-Backs-For-Fish-Hook-Earrings-Small-144/dp/B0029YRCTC/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Earring Backs Safety Backs For Fish Hook Earrings Small (144)</a>, but decided to try the medium size first. So far, I'm pleased to report that their hole is just small enough in diameter that hey are staying on the 4 pair of older, thin wired earrings I've tried them with, but not too tight to get onto the newer earrings I've tried them with.

With the reasonable price of these tiny backs, however, I'll try a package of the fine backs as well. I'm a tad concerned that as I use them they will loosen a bit. The two sizes are easy to tell apart, the medium is scolloped and the small are tiny round tubes.

Both sizes are available using your Amazon Prime Membership  for shipping, which brings me to a very important aspect of purchasing these items from Amazon and the value of a Amazon Prime Membership. TIME: I save so much time and money for gas by not having to hunt up a tiny package of a dozen earring backs at local stores. You can't beat the value, quality and savings garnered by using your Prime Membership when purchasing small items like this from Amazon (bigger ones too)!