i wish they were cheap and i wish they offered complete protection. if you move to the pond where i am staying u need protection for the coins, then you need protection for the airtites/slabs then u need protection for the storage then you need protection for the container then after that you need protection from the environment and then so fortha nd so on once you are done u find there is no money left for coins i was hoping you would come up with a one stop solution in the future
..........some, in the collector community, don't care for the ringed air-tites because of SOME claims that the ring caused a change to the coin. it was said that they were blamed for 'unwanted' toning developing after a period of time. at least that was the claim.
Or one of those vacuum food sealers DesertGem was talking about one day. No air = no toning or corrosion.
Or perhaps they didn't prepare the coin properly before sealing it. I blow out all particulate matter with canned air, then I rinse the coin with acetone (no finger touching, use gloves) and then I seal it. I have about 2 years on my proofs like that with ZERO change in their appearance. I should also add that I put the Airtites into a 2x2, then into 20 slot three ring pages, then into a binder. I keep the entire binder in a giant ziplock bag with a couple huge dessicant packs.
Never used an those air-tites. To cheap to spend money on those. I put most coins in Whitman Albums, plastic rolls or 2x2's. After over 60 years now, no complaints.