Product features:
1. The skin of the arm is made of imported materials, and there are real visible and palpable veins on the skin surface.
2. When piercing the skin and veins, the skin will fluctuate and feel obvious.
3. When the needle punctures the blood vessel correctly, real blood return is produced.
4. Under normal use, hundreds of piercings can be performed.
5. IVS and transvenous introduction can be performed.