Features: This project is a injection training material for medical students, with realistic design and touch. The simulated skin module made of high-quality materials is safe and durable, and can help students better practice professional skills. This is a very practical material accessory that will make you an excellent choice for practicing venipuncture IV injection. If you have any problems with the products, please feel free to contact us after you received the itmes. Package includes: Blood return + injection model + 1 pack of colour pigment + Other accessories