If you want black, just say black only. Sometimes if you don't have the requested fabric you may have to purchase a FQ or so but that's what these Booms are all about. Last 2 booms I requested white only because that's what I wanted on the quilts, only got 1 square back that wasn't. I did write preferences this time also and would rather that if someone doesn't have it or can't purchase it to just send back my fabric untouched. Don't think anyone uses UFO blocks that often when you only have 1 or 2. Just my opinion....