Unique Crystal Advent Calendar 2022- Looking for a special Christmas gift for kids this year? These rock countdowns from around the world are naturally precious and can be kept forever,surprising you each day A Great Variety Rock Collection- This satisfying mix of stones and real crystals contains chalcedony, jasper, quartz, fluorite, agate and more. Not only will you get mini geodes and quartz points, but lots of colorful gemstones and more Fun Activities of Learning and Collections - Unlock unique mineral deposits or beautiful crystals and explore the field of geology science.It is colorful and interesting enough for kids, their families and hobbyists Celebrate this Season with a Natural Tone- Get ready to be stunned by the wonders of the earth Get a treasured box of memories, as well as a favorite science experience Perfect Holiday Present- In a Christmas-themed box, this Christmas toy gift is suitable for girls, boys, children, adults, and teens to meet the needs of different age groups. This maze gives you an hour of fun.