I utilized a brand new bolt of obi fabric. Since I'm using fabric that has never been made into an obi before, there are no stains. There's a method of attaching the clasp with glue, but the clasp on this bag was sewn on stitch by stitch, so it won't come off even if you put heavy items in it. I've sewn it with thread used for leather products, so it's a very sturdy thread. If you try to cut it by hand, you'll cut your hand first. Inside: 1 zippered pocket, 1 open pocket. Thank you. Size: Maximum width of the bottom: approximately 30cm Gusset width: approximately 18cm Height: approximately 14cm