IMO, these boxes are pretty terrible in quality, the magnet barely stays on. They are a great set of budget boxes if you don't have the funds. Invest in some Ultimate Guards which are way higher quality and your cards don't be flying out of their boxes while stored in your bag.
HouseTo reiterate on House's comment, Tolarian Community College's Professor did not have good things to say about these boxes. You can find his review in the video below at the 5:03 mark. If these boxes didn't have the problems they have now, then this drop would be amazing