Practi-Tuberculin PPD™ (for training)Wallcur's Practi Tuberculin PPD vials, for clinical training, provide an excellent practice for students to learn intradermal injection skills. Each vial contains 1 mL of distilled water and simulates 5 TU 0. 1 mL of the actual PPD vial size, dosage, and contents. Manikin safe! Practi Tuberculin PPD Teaches: Reading and interpreting dosage requirements Calculating fractional intradermal PPD dosages Small vial pressure changes Small needle and