If you are searching the internet for supplies for these bracelets, you find them by these words: clasp, ribbon, fastener, ends, cord.
On Etsy.com you buy 30 pcs for about $3,50 10mm - 15 mm clasps. Because English is not my first lanquage, I didn't know how to discribe... greetings and have fun with this tutorial, Karin Robberse