Get an up-close view of decomposing objects with the Now You See It, Now you don't see-through compost containers! Conduct side-by-side experiments in three separate containers. Compare three of the same objects in different soils or 3 different objects in the same soil. Perfect for science fair projects. # Pieces In Set: 5 Learning Skill: Science Recommended Ages: 4 Years And Up Measurements: 5.9 Height/Inches, 13.4 Length/Inches, 9.9 Depth/Inches Base Material: 100% Plastic Country of Origin: Imported