Using these curtain hooks is easy. Just find a suitable spot on your curtain, use a curtain cord to attach the hook, and then hang it on the wall or door as you like. When using them as a curtain tie - back, simply wrap the curtain around the hook. As for maintenance, keep them away from sharp objects to avoid scratches. Clean them with a soft, dry cloth regularly. If they get dirty, you can use a mild soap solution and wipe gently. Remember, these hooks are suitable for medium - thick, thin, and string curtains, so choose the right curtain type for a perfect match.