The Ore Christmas Advent Calendar 2023 is very attractive for children as it contains 24 types of rocks, gemstones, minerals and specimens (may contain the same stones or stones not shown in the picture) so children can take the stones from A stone rushes expectantly onto the grid every day.The closed-pack 2023 Advent Calendar adds interest and provides a fun way for kids to enjoy. It allows children to develop patience and creativity while playing.2023 Mineral Advent Calendar has a unique design. It has grids for kids to play on. Children can play this game from the first day of December until Christmas.Gemstone advent calendars increase interaction and motivation with children. Better than a simple boring digital countdown.Use the Rock Mineral Advent Calendar 2023 to calculate the Advent days in time for Christmas. This is a special calendar and a perfect gift for adults and children.Product size: 16.4*5*21cm