This is the second set of these I’ve bought, because I misplaced a couple from the first set, and for an extended vacation coming up I will need to take at least 6 vials with me. I use one all the time at home. When traveling, I place multiple vials protected by these cases into a Lock n Lock, then into a cooler. I feel this provides better protection and takes up less room than the boxes that the vials come in.