Let children discover the busy subterranean world of earthworms! Worms stay safely inside the double-sided viewing unit that includes light shields and an escape-proof tray/lid. Kit includes: viewing unit, shield and tray, experiment booklet, facts and anatomy poster, worm cutouts, magnifying glass, growing tray, tomato seeds and mail-in certificate. Send the mail-in certificate and $9.95 for live worms and starter food that ships Priority Mail year-round to the 48 states. Award-winning, teacher-developed product! 9-3/4" x 15-3/8" x 5-3/4".