Organic Chemistry Model Set, Build thousands of organic molecules in their natural conformations and see the 3-D structure of the molecules, With 140 durable components in this model set, you can build bigger molecules without having to reuse model parts, Snap-closure
Human Anatomy Transparent Torso Model 4D, 8in model contains 37 detachable, hand-painted medical education-quality organs and parts and a display stand, Also includes illustrated assembly guide and description of the anatomy, For ages 8 plus