Coins may tone over time from oxygen or airborne pollutants. Metal SAFE vapor corrosion inhibitor prevents this toning. Metal SAFE emits an odorless vapor that permeates coin holders. When Metal SAFE vapor contacts metal, it lays down an invisible barrier that protects, but does not coat, clean or change coins. The protective effect disappears once the coin is removed from the storage area. Metal SAFE works with all types of coinage metals, and all coin holders.  Metal SAFE will protect silverware, fishing tackle or tools, anything made of metal. It works at any humidity level, so there is no need to use silica gel or other moisture absorbers. Since 1979 many leading numismatists have endorsed Metal SAFE, including former ANA presidents Florence Shook and Anthony Swiatek, as well as well known experts, authors Maurice Rosen, Scott Travers and Jon Warshawsky.

One Metal SAFE capsule protects 33 cubic feet (two foot radius) for one year.

Unopened packages have a three year shelf life.

Pack of 6 capsules