The product is constructed with skin and subcutaneous tissue, with clear layer, realistic tissue tension and elasticity. It can perform skin incision, angiodiastasis, knotting, ligation, stop bleeding, trimming, suture, taking out stitches, etc. Each model comes with coarse and fine blood vessels for repeated angiodiastasis, ligation and stop bleeding practice. Each module can be replaced after damaged. It is the best practice ways for beginners to improve surgical suturing skills.