This 26.5" x 19.25" jigsaw puzzle illustrates detailed views of the major systems of the human body. The puzzle features 1,000 durable easy-fit pieces made from recycled cardboard, recycled paper and vegetable-based ink. Puzzles feature detailed illustrations and text in multiplie languages. "Assembling puzzles improves fine motor skill, picture recognition abilities and task completion; promotes both cooperative and independent play," Erich Fellinger, sales manager, EuroGraphics, told TDmonthly.