Dig! Discover T-Rex Tooth Experience the thrill of discovery with the Dig! Discover T-Rex Tooth kit from Kristal Educational. Unearth a 6-inch replica Tyrannosaurus Rex tooth using the same techniques as real scientists. Use the excavation tools to remove the rocky layers, revealing an ancient treasure. Each kit contains an excavation block, brushes, excavation tool, paint tablets, and ''How to Become a Fossil Collector'' booklet. Additional items may be required. For ages 7 and up - Instruction booklet included