This is one of my favorite dice that I own. I bought a brown and black swirl with white numbers as part of the Black Rock Relics Kickstarter, and I'm pleased with the result. I can't overstate how pretty it is. My die is on the Facebook page: https://www.facebook.com/photo.php?fbid=277524059067602&-
set=pcb.277524095734265&type=1&theater The shape is perfectly a d20, with good, but not too sharp, edges. While looking smooth, it does have a bit of a rough feel to it, which I don't mind. Overall, I love this die, and can't wait until I can buy more.