1. Prepare according to the actual shape and size of an adult's palm and upper arm.

2. Applicable to the development of various brands of ultrasonic equipment;

3. Built-in radial artery, ulnar artery, brachial artery, head vein and vital vein, etc.

4. It can support vascular Doppler ultrasound examination in a circulating state.

5. It can meet the requirements for simulation practice and teaching of radial artery puncture under ultrasound guidance.

6. Exercise hand-eye coordination and basic skills training under ultrasound guidance.