Break Open 2 Jumbo Geodes - These Large Rocks Have Crystals Inside! DISCOVER INCREDIBLE CRYSTALS! - Geodes are natural wonders. These hollow rocks have beautiful crystals and minerals inside TENNIS BALL SIZED  These geodes are about the size of a tennis ball! Kids will love breaking open these large geodes GREAT VARIETY  Each geode is mined from a different source to provide the best chance of finding amazing crystal treasures! START A ROCK COLLECTION  Crack these open and find dazzling crystal specimens 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!