I purchased the bun bar and original Pony-O for myself and my sister, our hair types are quite different (mine on the thicker side and my sister's is quite thin, both medium length). We both found no advantage using the Pony-O; it doesn't hold (trying both the narrow and thicker designs), we're constantly having to re-do/tighten it during the day, the bun bar is also useless. An instruction booklet is included and I've watched numerous instruction videos, so we're using it as instructed, the product just doesn't work. After quite a bit of perseverance, they may as well go in the bin.