while they do add support lift they do not fit of my post earrings and are awkward to use [SEP] i tried these with of my post earrings and they fit pair for the ones that did not work i could not get the post through the backing hole it was just too small and the common factor for those is that those posts have ridges which i have always thought were intended to provide a tighter more secure fit into the backing while these backings do provide some lift i found them somewhat awkward to use put on both because they are considerably larger than typical backing and the need to ensure the heart is facing up stars because they do work with some earrings and they do provide lift stars off because they do not fit all of my post style earrings and they are awkward to put on