Command decorative knobs are great for use as decorative picture hanging knobs or as statement Hooks on the wall. Using the revolutionary Command adhesive, Command decorative knobs hold strongly on a variety of surfaces, including paint, wood, tile and more. Yet, they also come off cleanly - no holes or sticky residue. Reusing them is as easy as applying a Command refill strip, so you can take down, move and reuse them again and again