You'll find, on the Czech glass button pendants, the same sterling silver and 14k gold-filled chain and findings used on our other delicate necklaces. These Czech glass buttons have been made in the same wooden molds since the 1920's. You may choose your own color and style of button with this type of necklace. The pendants come in a gorgeous aurora blue iridescent, as well as gold and silver, all on black glass. Matching earrings, watches and bracelets are also available.