1. The cap holder is made of sturdy metal + double nylon. NO PLASTIC Comes with an easy-to-understand instruction manual. Easy installation - no tools required 2. ATTACHES TO THE DOOR with simple elastic strips over any standard door. No hassle and no difficult installation. HANG OVER A DOOR, IN THE WARDROBE AND MORE: Place the cap holder almost anywhere in your house, dorm room or wherever you store your collection. It comes with an over-the-door hook that fits doors with a thickness of 1.5 to 1.75 inches. Also place it on a wall or from the ceiling as a mobile. 3. KEEP ORGANIZED and never lose your caps. The cap holder can hold more than 16 caps if desired. Show off your favorite cap anytime and prevent damage to your sports collection. The baseball cap and closet organizer is perfectly designed to handle small spaces where organization is a must. 4. Advantage: Easy to access, save space, keep clean and easy to choose hat according to what you are wearing. Advantages compared to hat rack: 1. Easy to attach hats, never difficult to pick up hats from the top; 5. Keep your hats clean in the closet, no more dust covering everywhere; 3. Fits all hats, not just adjustable baseball caps; 4. Suitable for other items such as socks, gloves, etc. A good replacement for hat rack or a complement to hat rack.