Discover the amazing underground world of earthworms! Includes a self-contained, double-sided viewing unit with black shield and tray (keeps light out-worms in). Ideas for garden variety earth worms. Makes a great display. Guide to Underground Secrets, magnifying glass, plus accessories for live action experiments; and a double-sided Worm Anatomy poster. Live worms are not included. The manufacturer recommends obtaining red wiggler worms from a pet store or local bait shop. Ages 4+.