this review title is: good quality but will open in your luggage and the content is: good quality but the disc cap push one edge to rock it back to expose opening will open on its own in transit in your luggage as pressure is exerted by your other stuff i put these in a plastic zip bag with paper towel to absorb leakage.there are other information for this review, one is this reviewer did purchase it and the other is 2 people think this review is helpful.