Storing Toned Coins

and zxcccxz is right I would use some capsules or something along that line

Many methods are available. Naturally one is what is called a flip. It's cardboard with a piece of mylar on it. You place your coins in them and fold over. You can still see your coin too. Most staple the sides clcosed and some tape them shut. They come in a multitude of sizes and are available at most coin stores or coin supply places.
OR you could just put them in those plastic rolls and seal the top. Plastic flips are also available.
Naturally you could just send to me and no more worries.
OR you could do as I did a long time ago where I placed some Cents in a liquid plastic and made a pen holder from them.

If you're really concerned use Intercept holders in 2x2s then store them in a cool dry and dark spot, bag the coins in a zip lock bag air removed, with a desiccant pack, then store that in a snap top Tupperware box. Layers to keep damp bad air out, as moisture, and heat are your biggest enemies, then light.

Desiccant packs can help keep moisture and humidity to a reasonable level, just keep an eye on the the desiccant and renew it or replace it as needed.

I had a huge loss on a bunch of Indian Head cents in AU/BU all nicely toned and Red or Red Brown they quickly turned all brown and not an attractive brown after I moved from a very dry Denver, Colorado climate to a damp Houston, Texas sub tropical climate. I didn't store them properly, other than in a cardboard box, in non PVC safe flips, in a closet that got pretty warm in the summer. That was an expensive lesson, never again. Also had a lot of my Morgans turn pretty dark brown in TPG slabs they were just in a cardboard box, in the same closet.