Material: Made of strong aluminum casing, not easy to scratch. (Note: Do not fill this atomizer bottle to the top, as there is an air hole in the sprayer, and it may leak from the air hole if it is too full.)PORTABLE SIZE: Portable travel size, perfect for carrying while traveling. The nozzles emit a very fine mist that is evenly distributed. Airplane safe and won't leak into your purse or suitcase.CLEAR VISIBLE WINDOW: There is a clear window on the perfume atomizer bottle, so you can monitor the perfume volume when it is full or used up. Perfect and useful. Easy to refill: Before refilling, remove the cap of the atomizer and press the nozzle several times to exhaust the gas in the perfume atomizer. Then align the bottom of the atomizer with the perfume tube, and finally press the perfume atomizer bottle up and down repeatedly, and the perfume will be filled in a few seconds. Convenient and practical! Wide Application: Travel Perfume Atomizer Bottles, perfect for night outs, social occasions, business trips, outdoors, parties and more. Makes a great fragrance gift for a friend or family member!