These bezel pendant trays are made of metal alloy, which is sturdy and reliable; while the dome tiles are made of clear glass, and their raised can magnify the pattern and make the pattern clearer and more vivid. All the glass fits the pendants pretty well, the black necklace cord is made of waxed cotton that are strong and . The pendant trays for jewelry making are available in 7 colors, including silver, bronze, antique silver, black, antique red bronze, gold, white, providing you with fashionable color options. the blank pendants for jewelry making size is approximately 1 inch, pendant blanks are perfect for making jewelry such as pendants, bracelets, necklaces, keychains, etc. The pendant trays are fun to work with and look great when finished. Glass and trays of the pendant trays fit really together. This package contains 70 pendant trays and 70 glass cabochon dome tiles and 70 pcs black necklace cords, a total of 210 sets, pendant tray is suitable for pendant and jewelry making. These bezels for jewelry making are ideal for making a variety of projects such as custom jewelry, cameo pendants, handicrafts, photo jewelry, resin crafts, etc.