The Aymara chocolate canvas butterfly cufflinks are made from real butterfly wings, which are then enameled over, and set in Peruvian Sterling Silver. Peruvian Sterling Silver is 95% pure silver and one of the best alloys of silver in world, which increases the cufflinks& strength, as well as their resistance to tarnishing. The adult butterflies aren't known to nourish, but their young caterpillars are healthy eaters, feeding on either residue or moss. While the young caterpillars feed in small groups, the older caterpillars tend to eat alone. Their cocoons are normally close to small branches by a well-built silk stem. These butterflies are known by their rather large wings, ranging from chocolate brown to medium reddish brown with a touch of olive coloring. They have quality clear or light brown spots that add to the texture of each cufflink. Because these textures of Rothschildia butterflies vary, the cufflinks will add usual and fine coloring to your suit jacket or shirt cuff.