Features：
1. Adult buttock, precise anatomical structure
2. Both sides are suitable for injection practice, realistic texture
3. Electronic monitoring, indicating injection position, depth by LED lights and sound alert
4. Gluteal IM injection site: Place the center of the left palm on the greater trochanter and the tip of the index finger on the anterosuperior iliac spine. spread the index and middle fingers as widely ad possible. the central point between the index and middle fingers and the iliac crest are injection areas