Practice of 3 injection sites
Shibusanbu method (upper outer quadrant), and Clark's and Hochstetter's points
The pelvis is built-in. Trainees can practice identifying the injection site by palpation of the iliac crest and greater trochanter.
The green light turns on when a needle is inserted into a safe region. The red light turns on and a warning buzzer sounds when the injection site is incorrect or the insertion is too deep, even at a safe point.
The water (only tap water) can be infused.