Product Details Features: 1. Refillable perfume spray bottles has pump-to-fill technology for spill free refilling in seconds No need for any filling tools. 2. With clear visual window. Can monitor perfume volume changes at any time. 3.Different Metallic Colored casings are good for organising your different fragrances. 4. 8ml 5ml Perfume Atomisers Bottles. Handy size and light weight.easy to carry around. 5. New Leak-proof design, strong and durable, glass free & air travel approved for luggage, handbag and pocket. Product Description: Capacity: 5ml Size: 5ml: 80mm*16.5mm; Material: Plastic and Aluminum How to use perfume atomisers: 1)Before refilling perfume, remove the atomizers lids, spray a few times to discharge the gas in the perfume atomiser, 2)Take off the lid of the big perfume bottle, and check the tube size of big perfume bottle. Tube diadiameter 3.2mm, 3)Insert the atomiser vertically on the perfume bottle tube, press up and down repeatedly until it refills becomes, 4)Monitor the clear visual window to ensure the highest water line not exceeding the highest point of the window, 5)Finish filling, try to spray 1-2 times to speed up filling port closure. 6)After use, close the cap and take it with you, could be put in your pocket or handbag, suitable for travel.