Command Damage-Free Hanging, Holds Strongly, Removes Cleanly.The Command Clear Crystal Knob Hook is great for displaying and organizing your jewelry and accessories where you can see them in the bedroom and closet. Command Clear Hooks and Strips blend in seamlessly allowing you to show what matters most, your decor, not how it's hung up. Forget about nails, screws and tacks, Command Clear Hooks are fast and easy to hang! Uses Command Clear Adhesive Strip to hold strongly on a variety of surfaces, including paint, wood, tile and more. Removes cleanly no holes or sticky residue. Rehanging them is as easy as applying a Command Clear Refill Strip, so you can take down, move and reuse them again and again!