These are exactly what I wanted.  I wanted them to tuck up into our window casing so they were barely noticeable.  They were probably even narrower in diameter than at least they look in the photos which made them even better.  Very light-weight.  They were perfect for the sheers I wanted to hang on them over a six foot wide window.  Highly recommend depending on your usage - obviously not for heavy curtains, especially over a long stretch.