Material: Alloy, paper Features: When your kids opening a window ,there are different charm jewelry. It means that child receive different blessings every day. It is a fun jewelry advent calendar for your children. It is so interesting that open the number windows and count down the days until Christmas day. It is an ideal Special Christmas gift for your child. Interactive play and design with your child, the handmade activity bring happiness and joy to your kids and helps harvest more family Love in the holiday. Each jewelry item is made of high quality environmental alloy. Our Jewelry is hypoallergenic,durable and non-toxic. This kids advent calendar Jewelry also symbolizes promoting beauty, health, good luck, and healing. Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.