Together with metal, plastic, or Wooden hooks, and these can be used for the two inside and exterior window treatment plans. It is important to pick the best type of drapery hook for that curtain rod or pole and for that type of fabric or texture on the window cure. https://hectorgqwbh.shotblogs.com/not-known-factual-statements-about-types-of-curtains-hooks-and-rings-43449585