Silver box lock spacers clamp the jewelry chains at different points, acting like spacers between the jewelry design. These lock spacers clamp on separate areas and enhance the look of the jewelry piece. Multiple hole or single hole beads are used as spacers between jewelry designs for necklaces, earrings, bracelets and other beaded crafts. Jewelry pieces with many chains use multiple hole spacers. They add a striking feature to the jewelry piece. Spacer beads are often made up of metal, and generally gel up with jewelry pieces made from any material. Spacer beads serve as an important function by spacing the jewelry designs, thereby making the design clear.