I have these bands in black and dark brown, ranging in sizes from 18-24 mm and I've never been disappointed. They are true to size, hold up well, break in nice, and are comfortable. Not shiney cheap fake plastic leather.  I've used them on 100 year old watches and new watches and everything in between.  Always looks good.  This most recent is for a pocket watch conversion. I purchased a 24mm black strap and it's great.