About this itemThe Christmas advent calendar provides children with rock collection sets to surprise your little geologist, which will stimulate your children's curiosity and interest. An ideal Christmas gift for children over 3 years old.The rock advent calendar is a fun way for children to count down every day until Christmas and get some surprises every day. This can cultivate their patience.This crystal advent calendar can keep your child away from electronic products and reduce stress. You can also practice numbers and counting skills with your childThe countdown to Christmas is an exciting time for children. Using a Christmas advent calendar is a way to increase holiday expectations. 24 days, every day there will be new surprisesThis Christmas countdown calendar is made of safe, non-toxic materials, suitable for adults and children over 3 years old. Including rough and polished samples of rock.Product Each day leading up to Christmas, kids open a panel of Christmas advent calendar to reveal a special rock, mineral, fossil or gemstone With this Christmas countdown calendar, they can start a rock collection they will enjoy all year round. A great scientific gift for mineralogy and geology lovers. Note: Please allow slight errors on size due to manual measurement. The color might exist slight difference due to different displays.Package Including1 * Christmas Advent Calendar