Learning Resources Cross - Section Tooth Model. Show students what's beneath the surface of their own teeth with this 12.5cm foam cross-section model. This Model is labelled on one side with the main parts of a tooth, the other half is labelled with letters for assessment. Activity Guide included. Specifications: - Dimension: 16.25cm x 14.73cm x 14.22cm - Weight: 0.30kg - Age: 9 years and older What's in the box Cross-Section Tooth Model