Travalo is a purse-sized travel perfume atomizer bottle with a patented valve that allows refills in seconds & lasts for days. With a patented valve technology it ensures that Travalo is completely safe to use on board flights, coping with the varying pressures enabling you to be fully prepared for landing! To use: Remove the spray head from your perfume bottle. Place your Travalo upright on top of the nozzle peg of your perfume or aftershave & repeatedly pump it up & down to fill. You can tell how much is in your perfume atomizer bottle by the fill level indicator window. Replace the cap, put away your perfume, & enjoy the freedom & convenience of Travalo! Works on every bottle with a removable spray nozzle.