These are nice big hooks for hanging plants or lights or can be used outside even for wind chimes or other hanging decorations since they have a white protective coating on them. Ends of the hooks are threaded like screws so all you need to do is line it up and twist it in. If it is a super hard area predrilling the hole may help. #Rankboosterreveiw #Sponsored #Lelines https://www.amazon.com/Lelines-Coated-Screw-Ceiling-Hanging/dp/B07BPHXYZC