Our outstanding deluxe TB testing models are created to be more flexible. Made of soft palpable material for greater realism, students can use these models to practice feeling for and measuring skin indurations. One beige model and the brown model feature variations in skin color typically occurring around test sites. A second beige model lacks the appearance of erythema reinforcing the idea that accurate assessment relies on measurement of the induration, not of any accompanying redness. Models are 3" x 6 ½” x 1".