because its plastic and the hygrometer is not even close to being correct (its got a indent for a boveda pack so I don't worry about the RH much), but for a stinky box of KFCs it will serve its purpose. I personal don't do Tupperware so for me the vision humidor is perfectI loved the visions!!! The ash was so damn white. I remember that part lol. I got some KFC's awhile ago and also got the Vision Box yesterday lol. Why do you say they'll be perfect?I have 2 of those since I used to smoke the visions with my buddies and they are JUNK! However I would say if you are going to pick up some MUWAT KFCs they are probably perfect for them!The mash-up have some great stuff! CAO Vision Humi for $25 is not bad