The Basic Tissue Insert is for use in the practice of basic closure methods. The tissue plate is made of 4 layers developed to match the feel of epidermis, dermis, fat, and muscle. The product is made to work with or without the Pro-Stitch Surgical Skills Trainer. All layers accept adhesive and bandage closure methods. The product is completely animal friendly and mess free. During use, the skin layer does not propagate a tear and will appropriately hold a suture. Tissue plates can be saved for evaluation or reused multiple times. Size approximately 12.5"X 3.5"