A few months ago, I ordered the Pave Bar Push Pin Flat Back Earring, which I absolutely love. However, they came with the 6mm flat back posts. Unfortunately, that length of post is too long for my ear lobes. When I wrote a review about loving the earring but not the fit, Annie immediately responded and graciously offered to comp me a pair of the 4mm posts. I finally switched them out today -- and yes, it's not easy, especially for 52-year old eyes--but they are fantastic! Please, Maison Miru, give us the option to select the 4mm posts when we order flat-back earrings!