Honestly not the greatest - whipped this up in about 5 minutes on Fusion360 when I realized I wasn't going to be using the whole container right away, but the cap had been shattered during shipping.

It works though! I've had this on for about two weeks and no sign that the beads inside are changing color due to moisture getting in.

The threading is slightly off, so I'd bet it will deform the more it's used, but as mentioned, it's still holding up for me.

Note: This is only for the Half Gallon Dry&Dry container, I know it won't fit the smaller ones, not sure about the larger ones.