Glad button covers are in stock. I can't decide between black delrin and aluminum. I am waiting until the sub-ohm kits are available before I buy a button cover. I vape with the button "up" and use the side of my index finger to fire it and it does get uncomfortable at times. Someone was kind enough to list two free delrin covers a few days ago, but of course, I wasn't online to see that generous offer. So, I wait......