Material: Made of high-quality metal material, sturdy and durable for long-term use Description: The front of the pendant is a 50-year calendar (2007-2056), with the function of displaying the date, very practical, the back of the pendant is just a smooth surface. WIDE APPLICATION: The key chain should not be hung on the keys, but it can also be used as a small token of affection for loved ones; as a promotional gift, it is also fine. Features: Small and exquisite, light and portable, easy to carry with keys, and beautiful Use: With a perpetual calendar, it can also be used as a pendant in your projects.