The RealSuture 3-Layer Suture Pad is designed to mimic the first three superficial layers of the abdominal wall; the Epidermis layer, Subcutaneous layer, and the first Fascia layer. To behave like real tissue, the Epidermis layer has been reinforced to absorb tension and pulling in your suture practice. TRAINING APPLICATIONS: Superficial Suturing, Ensuring Knot Security, Burying Sutures