Every Rembrandt Charm is a miniature work of art created by 40 skilled artisans. Each piece is stamped with the trademark “RQC” and metal quality mark. Sterling silver charms are plated with rhodium to prevent corrosion or tarnishing and to extend their life and beauty. Every piece comes with a heavy duty jump ring that may easily be twisted open or closed for TEMPORARY placement. It is recommended to have each charm soldered onto your bracelet by your local jeweler for permanent placement.