Box Size: 21*16.4*5cmGreat Christmas gift choice for education or rewards. You can put it in a gift box as a birthday party gift, class reward.Stimulate children's curiosity and interest in geography. Children wil cultivate patience and know more about conch.Composed of 24 containing different rocks and ores. Open a grid every day, you can get surprises.Children can accumulate happiness by acquiring different small toys every day.Countdown is an exciting time for children. It increases childrens expectations for Christmas.It's very suitable for Christmas decoration in homes, schools, dormitories, rooms, etc.Package includes:1 x Advent CalendarNotes:1. Please allowed 1-3cm differences due to manual measurement, thank you for your understanding2. Due to the difference between different monitors, please understand that the picture may not reflect the actual color of the item.