These 3-D General Zoology Invertebrates Charts provide scientifically accurate three-dimensional, detailed, labeled descriptions of biological systems for Worms; Mollusks; Arthropods; Arachnids; Internal and External Insect Features; Protozoa; Beetle, Bumblebee, Butterfly, Grasshopper, Fly, and Flea; and Earwig, Termite, Dragon Fly, and Bristle Tail. Set of 8 full color charts that are 9.25” x 12.75”.