Material: alloy, silver, diamond -It can be used as a birthday gift, graduation gift, Valentine's Day gift, engagement token, can be given to friends, parents, brothers and sisters on most occasions, it will be a very special gift. -When you receive the items, if you have any problems, please contact me in time, I can help you solve the problem in the first time, your satisfaction is my motivation to continue to improve, thank you for your support and understanding.