Made with a soft vinyl skin over a core of stitch able foam to provided a lifelike suturing experience for students or realistic suturing demonstration by an instructor. Realistic shin texture with wrinkles, pore, and visible fingerprints. Soft and pliable for easy sewing the skin is tough enough that sutures will not pull out when tightened. Each unit provided three pre-existing "wounds". These "wounds" can be sutured repeatedly until the skin around them is finally worn out; then, new "wounds" can be cut. The trainers provide hundreds of suturing experiences before wearing out. Over one hundred cuts can be made on each trainer and each of these cuts can be sutured several times.