HYTHU-NATIONAL GEOGRAPHIC Rock Collection Advent Calendar 2025 - Advent Calendar for Kids with 24 Gemstones, Minerals & Fossils for Kids, Complete Gem & Fossil Collection Christmas Countdown Calendar

STUNNING SPECIMENS FROM AROUND THE WORLD - The polished rocks, gems, and fossils in this advent calendar include Geode; Pyrite; Rose Quartz; Red, Black, and Green-Spotted Jasper; Agate; Tiger's Eye; Brachiopod; Black Urchin & more! 24 DAYS OF TREASURES - Each day leading up to Christmas, open a panel 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, with storage bag included! Product Dimensions:7.28 x 1.69 x 10 inches|Item Weight:1.19 pounds|Item model number:NGRMFADVENT2|Manufacturer recommended age:6 months and up|Release date:February 17, 2023|Manufacturer:JMW Sales, Inc.