Two-in-One Intramuscular Injection Model of the Buttock

This human buttock model combines anatomical study with intramuscular injection practice. Its transparent right side shows bones, iliac crest, greater trochanter, gluteus medius, nerves and veins; the soft-skinned left side allows anatomical landmarks to be palpated and water injection to be practised. Correct injections are confirmed by a green light, while an incorrectly positioned or overly deep injection triggers a red light and buzzer.