Discover with Dr. Cool Break Open A Gigantic Geode - This Large Rock Has Amazing Crystals Inside! DISCOVER INCREDIBLE CRYSTALS! - Geodes are natural wonders. This hollow rock has beautiful crystals and minerals inside SOFTBALL SIZED  This geode is about the size of a softball! Kids will love breaking open this gigantic geode EXCITING ACTIVITY  Breaking open geodes is tons of fun! Grab a hammer, get to work, and reveal the incredible crystals inside! START A ROCK COLLECTION  Crack open this geode and find dazzling crystals. Perfect specimen to add to your rock collection INSTRUCTIONS INCLUDED  Follow the instructions for best results. Breaking open your own geodes can take a little time and patience, but the results can be AMAZING!