Enlarged cross-section model features 3 cancerous conditions; NBC (nodular basal cell), MM (malignant melanoma), MBC (morpheic basal cell) and 3 non-cancerous conditions; DN (dysplastic nevi), KA (keratoacanthoma), AK (actinic keratosis) with basal layer and dermal layer cross-section detail. Model size: 4"x 1-1/4". Card size: 6-1/2"x 5-1/4". Base size: 6-1/2"x 5"x 1".