Full-size model is made of durable, lifelike material with embedded lumps that simulate fibrocystic mass and typical tumor. The 8-3/4 in. x 6-1/4 in. x 3 in. model also contains a lactiferous duct. Back side of 8-1/4 in. x 6-1/4 in. education card shows locations of irregular masses. Art on the 8-7/8 in. x 6-1/4 in. base shows common self-inspection patterns.