EASY TO REFILL: Innovated design with a valve on the bottom of perfume atomisers bottle, easier than common atomizer. Insert the nozzle of your perfume bottle into valve at the base of atomizer. Pump up and down firmly until full, but Do not over fill it. .PREMIUM QUALITY: There's a clear window on the perfume atomisers bottle, so that you can monitor the volume of liquid to replenish it in time. Also the shell of perfume atomizer is made of high quality aluminum so you dont need to worry it will be broken .DIFFERENT COLOURED SHELL: The fashion perfume spray bottles set include 4 colors: black, pink, sliver, blue, help to organise your different flavors, suitable for both men and women.Color may vary slightly due to different batch.